Check emission system acura español

How to Fix Emission System Problems in Acura MDX. Step 1: Check the Gas Cap. Step 2: Inspect the Oxygen (O2) Sensors. Step 3: Examine the Catalytic Converter. Step 4: Inspect the EGR Valve. Step 5: Check the Air Injection System. Step 6: Inspect the EVAP System. Step 7: Perform a Diagnostic Scan. Preventive Measures to Maintain a Healthy ...

Check emission system acura español. Jan 29, 2024 · How To Reset Check Emission System Acura MDX? The following are the fundamental methods for resetting the check emission system light on an Acura MDX: Check that the ignition is turned off. Do not turn on the engine. Under the driver’s side dashboard, look for the diagnostic port. It will be a rectangular 16-pin port.

2007 MDX Tech DIY performed: Fluid change: engine oil, ATF, transfer case, rear diff, PS, brake, coolant Parts R&R: air filters, both AFR sensors, spark plugs, oil pressure switch, 3rd clutch transmission fluid pressure switch, radiator, drive belt & tensioner, sway bar end links and bushings, brake pads, TPMS sensors, low beam and DRL bulbs, wiper inserts, hood struts, spark plug tube seal ...

Help with “check emission system” on 2009 MDX. I posted here before about this issue but I never got it resolved. I own a 2009 MDX and after replacing my radiator (approximately 1.5 years ago), immediately had the “check emission system” light come on. The mechanic that did the work said something about needing a pigtail to fix it.Ask Your Own Acura Question. Yeah. Mechanic for Acura: ok. you have misfires going on. you need to take the vehicle to autozone and have them scan the computer for fault codes so we can see what cylinders are misfiring. its free. write the codes down and let me know what they are. Ask Your Own Acura Question.There are a few reasons why your Acura is telling you to check the emission system. A loose fuel cap or a faulty emissions control system are the two most common reasons. If you don't pay attention to the warning message, you could be fined or even have your car seized. The emission system might be checked if there is a problem with the fuel ...There is a problem with the engine / engine management / emission control systems or one of the inputs that it uses to operate properly / efficiently. There are dozens and dozens and dozens of reasons (actually close to 200 reasons) for this light to come on.What Does Code P0456 Mean? P0456 definition: Evaporative emission control system leak (small).; Issue Severity: LOW – Continued driving for a short period of time is okay Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption. Diagnosis: It is unlikely the driver will notice …The diagnostic trouble code is the code your OBD generates to tell you something is wrong. The DTC allows you to home in on the system that is not functioning properly. For example, if your vehicle's OBD detects a leak in the evaporative emission system, you may see a P0442 code. On most vehicles nowadays, there are hundreds of possible DTCs ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...

3389 posts · Joined 2015. #3 · May 13, 2017. 77 in SH-AWD is just a code for an General Error, Usually pops up because of something in the emission system is malfunctioning.. Fix that P145C and the SH-AWD 77 will fix itself. 2G MDX Tech & Entert // Sport Running Board // F&R Fender Garnish // Wheel Locks // K&N Filter making a billion ...The automobile fault code P2450 refers to the malfunction of the diesel particulate filter pressure sensor circuit. The estimated repair time for this issue is 1.0 hour. The cost of fixing this issue can vary depending on the auto repair shop, but it is common for them to charge between $75 and $150 per hour.19/05/2021 3:51 pm. Topic starter. I have a 2011 Acura TL front wheel drive with about 170,000 miles. The Check Emission System Light is on. I brought this into a mechanic who said that I'll need to replace the catalytic converter... which is about a $1200 job. I was listening to Scotty's video on driving at high rpms and I've noticed that when ...Jan 17, 2020 · Check VSA System and Check Emissions System. Hey guys! I drove my car to the gym today and everything felt normal. I let my car warm up for about 15 minutes because it’s about 15 degrees. When I got out of the gym and started my car two lights came on. One said “check VSA system” and the other said “check emissions system”. The alerts were: All-Wheel Drive: 77 - All-Wheel drive system may not be working properly. Emissions System P2251 - There may be a problem with the emissions system. Later when I got home, I read the codes using my ODB2 reader. I found: P2251. P0134. It looks like the P2251 and P0134 codes are related to the O2 sensor.Check Emission System Warning. Okay, so I am driving down the highway yesterday when the Check Emission System warning comes on in Amber. I call the …This article will discuss common emissions system issues that Acura MDX owners may encounter, as well as what you need to know about addressing these problems. We will cover the most frequently asked questions about emissions system problems in the Acura MDX, giving you the information you need to keep your vehicle running smoothly.Emissions tests aren't mandatory in the vast majority of Indiana. Only the counties of Lake and Porter have mandatory emissions testing. Those tests must take place every two years on cars that weigh less than 9,000 pounds and that were manufactured after 1975. If you keep your car out-of-state a lot of the time, then it's a good idea to ...

I thought so too, but then realized the RDX doesn't even have a gas cap. I'm scheduling an appointment at the dealership this week to get to the bottom of it.Table of Contents. If you see the "Check Charging System" warning light on your Acura, it could mean one of several things. There could be a problem with the battery or alternator. The check charging system light is off, but the battery is dead. It could be a bad alternator, but if you recently replaced it, there may be another cause.The Acura DRL System is a safety feature in Acura cars that includes daytime running lamps. The DRL warning light on the dashboard illuminates if there is an issue with the running lamps or other vital components of the safety system. What Is The Drl System On An Acura? The DRL system, which stands for Daytime Running Lights, is an important ...Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. P0442 code definition P0442 is a diagnostic trouble code (DTC) that is seen when a evaporative emission control system malfunction is present. This code may be seen with other EVAP system codes.

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You can assess the quality of your battery using a voltmeter. If the reading is below 12 volts while the engine is off, then it needs to be replaced. Another potential issue could be a faulty wiring harness. The wiring harness connects all of the parts of the SH-AWD system together.2009 TL check emissions light. I bought a used 2009 TL a few weeks ago only to have the check emissions warning come on the same day I bought it. Took it to an Acura dealer; they had it for a few weeks; replaced the PCM, updated the software and reset the computer. Picked it up today; drove home (~70 mile trip) without any warnings coming on.Follow these steps to turn off your Acura TSX’s check emission system warning light: Turn off the ignition switch and let the engine cool down. Locate the battery in your car. Find the positive (+) and negative (-) terminals on the battery. Locate the “negative” (-) end of the cable. Unscrew the nut on the negative connector and detach it.How to Fix Emission System Problems in Acura MDX. Step 1: Check the Gas Cap. Step 2: Inspect the Oxygen (O2) Sensors. Step 3: Examine the Catalytic Converter. Step 4: Inspect the EGR Valve. Step 5: Check the Air Injection System. Step 6: Inspect the EVAP System. Step 7: Perform a Diagnostic Scan. Preventive Measures to Maintain a Healthy ...Well I got a brand new aftermarket converter with a new O2 sensor. Everything is running well again but now the Emission warning won’t come off, even after installing the new converter. I was told either my O2 sensor was bad or that I had to drive the car some miles? I was told to buy another O2 sensor and they would charge me to install it.

A malfunctioning EVAP system, such as a leaking purge valve or damaged canister, can cause the check engine light to illuminate and increase emissions. 5. Leaking or damaged exhaust system. If there's an exhaust leak anywhere in the exhaust system, the warning lights can come on the dash.For the check emission system message, I wanted to replace the catalytic converter but my mechanic checked it and said it was ok, and adviced that I replace the sensors instead. As for the check trailer stability assist message, I notice that it comes on when I do a sharp left turn. The next best step is to see what codes are in the vehicle so ...Check Engine Emissions and Check SH-AWD System. Was rolling down the highway at normal crusing speed when all of a sudden both the above warnings pop …Service Issue - Emission, SH-AWD, VSA Codes. My 07 MDX threw several codes last night including Check Emission System, Check SH-AWD, and Check VSA. The car had almost no power and was only able to crawl up hills and achieved a top speed of 20mph going doing hill. My wife limped the car home approx 10 miles. This …The emission control system controls the release of harmful gases and pollutants from the vehicle’s exhaust system. The Check Emission System warning light on a car is an indication that there is an issue with this system. When the Check Emission System warning light illuminates, it usually indicates a fault with one of the system’s ...Code P0440 indicates a vapor leak somewhere in the fuel vapor system. These vapors can be very dangerous, detrimental to your health if inhaled, and extremely flammable.How To Reset Check Emission System Acura MDX? The following are the fundamental methods for resetting the check emission system light on an Acura MDX: Check that the ignition is turned off. Do not turn on the engine. Under the driver’s side dashboard, look for the diagnostic port. It will be a rectangular 16-pin port.Code P0440 indicates a vapor leak somewhere in the fuel vapor system. These vapors can be very dangerous, detrimental to your health if inhaled, and extremely flammable.There are three ways to reset the Acura RL's check engine light. We recommend trying to identify the problem and fixing it before resetting the check engine light. 1. Fix and Wait. The best way to clear the check engine light is to pull the trouble code, identify and fix the issue and then drive your RL around until the module that threw the ...The Acura DRL System is a safety feature in Acura cars that includes daytime running lamps. The DRL warning light on the dashboard illuminates if there is an issue with the running lamps or other vital components of the safety system. What Is The Drl System On An Acura? The DRL system, which stands for Daytime Running Lights, is an important ...Displayed on the MID was a warning for the SH-AWD and the Emission System. I checked the messages on the information system within the navigation unit and saw the engine code P2646. Something was read about potential power losses and to bring the vehicle to an Acura shop.In today’s fast-paced world, convenience is key. Whether it’s ordering groceries online or scheduling appointments with a few clicks, people are constantly looking for ways to simp...

December 2, 2022 by Bryan Mark. When your check emission system dash light comes on on the car’s dashboard, you should not disregard it. Still, what does this check …

The messages and lights were Check Power Steering System (even though the power steering was working flawlessly) Check VSA System, and Check Emission System (for non 9th gen people, Essentially just the Check Engine Light). Attached is the image of the lights. Speed Test. If anybody has a constructive way to fix this problem (Without using a ...Defective oxygen sensors or failing catalytic converters will trigger an emission system warning light on all Honda Pilot models. A fault in the cylinder deactivation system will have knock-on ...Bought my 2006 TSX auto trans, no navi, brand new 17 yrs ago, it presently has 202K miles on it. For at least the last 10 years now that insidious Emission System Check Engine Light has been intermittently coming on. It will stay off for a thousands of miles or so, then mysteriously come back on for a few starting cycles, then it goes away again.If they are a different size it will cause this issue. Also what happens is When it says check the SH-awd system it puts the AWD system into a fail safe mode and you will only have 2wd. Ask Your Own Car Question. they are the same size as factory tires. I did notice that it is currently in front wheel drive only.The check emission system on an Acura MDX means it has detected a malfunction in the vehicle's emissions, ignition, fuel, or exhauSTSystems. It typically means the car's emissions control system is faulty, and the vehicle is polluting the air beyond allowable federal standards. A vehicle in this condition would fail an emissions inspection or smog check. The fuel evaporative system (EVAP ...i have a 2007 MDX with 210,000+ miles. About a year ago my check emission light started to show up from time to time. at some point it came on at all … read more. John. Associate Degree. 867 satisfied customers. The SH-AWD Light came on and stayed on. SH-AWD. 2008 Acura.Diagnostic trouble code(DTC) P2422 stands for "Evaporative Emission System Vent Valve Stuck Closed.". When the PCM detects that the valve is stuck, on-board diagnostics (OBD) will log a P2422 code. The EVAP system's vent valve is normally open. It only closes when the PCM initiates a test as part of the mandated OBD-II standards.

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Contact Information. Lets Think Learning System. Sialkot bypass، Opposite Garden Town Phase 3، Faiz Alam Town, Gujranwala, Punjab 52250, Pakistan. Get Directions. Phone: 0304 6346400. Hours:"Check Emissions System" light. ... tsxclub.com is an independent Acura enthusiast website owned and operated by VerticalScope Inc. Content on tsxclub.com is generated by its users. tsxclub.com is not in any way affiliated with Honda Motor Company VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada ...Photos. If the SH - AWD indicator on the instrument panel stays on, and the multi-information display shows an SH - AWD message, there is a problem with the system. Your vehicle still has normal front-wheel drive with vehicle stability assist (VSA), but does not have the advantages of SH - AWD.Hey guys! Recently brought my 2010 TSX, equipped with ABS/VHS lights in all!Check engine light came on for Emissions System yesterday,so that's new.Says it running lean, possible Mass Air flow sensor🤔 before I throw any more money at these darn sensors,just wondering if anyone has insight or suggestions I have a 2005 Acura RL. The check emission system light comes on after I fill up with gas and goes away when the gas gage is less than half full. I took it to Acura dealer while the light was on. They found a code p0401. They recommended replacing the EGR valve and injectors for $1211.00. The light do not stay on all the time so I wondering can ... Emission System Diagnosis & Testing Cost Estimates. The average cost for a Emission System Diagnosis & Testing is between $44 and $56 but can vary from car to car. An Acura MDX Emission System Diagnosis & Testing costs between $44 and $56 on average. Get a free detailed estimate for a repair in your area. Follow me as I look at this 2009 Acura TSX and I point out the evap canister purge solenoid. The bank 1 sensor 1 oxygen sensor and the bank 1 Sensor Oxygen s...Check Emission System Light On - Should I bring my car to a dealership? Most likely take it to a dealer but if you don't have an OBD2 scanner take it to autozone real quick so you at least have an idea what the code is for. Acura MDX 2011 - 137k miles.Here’s how to turn off the Acura warning light for the Check Emission System. One after the other, turn the engine on and off three times. If the warning light does not turn off, you must turn off the engine and deactivate the battery. As the engine is off, remove the battery’s positive (red) power connection.M. mdxstang. 5925 posts · Joined 2013. #5 · May 28, 2014. You can still take it to the dealer if you want. They can put the OBD reader on it and see what the issue was since it should be stored until reset or the battery disconnected. You could also just wait to see if it happens again and then take it to them.Mar 14, 2015 · Bought my TSX little over a month ago 2006 6 spd. Haven't had a single problem as of yet, on the way back from philly had my check emission system light come on out of nowhere. So got it scanned at auto store and 4 codes came up, 61-1 battery voltage malfunction, 83-1 ECM/PCM (concerning me most) and P1009 camshaft position stuck at advanced ... ….

Hello - you have multiple, unrelated problems here. The Vehicle Stability Assist (VSA) system may only have a problem with a wheel speed sensor, a common problem with electronic stability and anti-skid brake systems. The emissions and "burning smell" problem will require a more extensive check of engine codes and possible failures like a stuck ...Acura. MDX. 2007. One of the most common reasons the check emissions system light will come in the 2007 (or any) Acura MDX is, believe it or not, a loose fuel cap. The reason this is the case is because the fuel system uses whats known as a positive vapor recovery system. If the cap isnt secure, pressure escapes the tank and triggers the light ...The fault code P2422 indicates a problem with the evaporative emission system. The diagnosis involves checking the fuel tank pressure sensor and the purge valve. The estimated repair time for this fault code is 1.0 hour. The cost of fixing this fault code depends on the hourly rate charged by the auto repair shop, which is typically between $75 ...2170 posts · Joined 2011. #10 · Dec 21, 2013. Check emissions system is a fancy way of stating you have a check engine light related t emissions. (Funny thing is my only cel came for a slow response on a ect sensor, which isn't emissions related but threw an check emissions light lol) Just get a code reader or go to autozone (free).Brake system. Brake fluid is low. There is a malfunction in the brake system. Press the brake pedal lightly to check pedal pressure. If normal, check the brake fluid level when you stop. If abnormal, take immediate action. If necessary, downshift the transmission to slow the vehicle using engine braking. Have your vehicle repaired immediately.If you watch my previous video titled Check Emission System Warning Engine Light On, we've replaced the Air Cleaner Intake Hose Fits and the warning was only...Service Issue - Emission, SH-AWD, VSA Codes. My 07 MDX threw several codes last night including Check Emission System, Check SH-AWD, and Check VSA. The car had almost no power and was only able to crawl up hills and achieved a top speed of 20mph going doing hill. My wife limped the car home approx 10 miles. This …Find your owner's manual and get detailed information about coverage & terms of your Acura warranty, including tires, accessories, replacement parts, & more. Infotainment System: 2019 and 2020 RDX. ACURALINK: Important info for 2017 and earlier vehicles. Airbag Recall: Important Information About Airbag Recalls ... Emissions warranties ...Summary. DTC P0455 stands for “Evaporative Emission Control System (EVAP) Large Leak Detected.”. Code P0455 is typically triggered when your vehicle’s computer detects a large leak in the EVAP system. Symptoms of a P0455 include a lit check engine light as well as the smell of fuel in your vehicle. Contentshide. Check emission system acura español, So if your check engine light is on and shows check emission systme this might help you out., https://amzn.to/43i0HtT - All-in-One OBDII Car Scanner https://amzn.to/4a7RPJG - Air Filters https://www.youtube.com/@carproblemsmax/join - Become our Sp..., I, too, have been getting the "check emissions system" and "check SH-AWD" indicator lights on my 07 MDX. It's only been occurring the last few weeks. I recently completed the A14 service (timing belt/water pump - ugh!), but had been having intermittent battery problems as well. (If I didn't drive the X for a few days, battery would completely die., Almost guaranteed that all the lights are due to the check engine light. You'd find that the VSA and other codes are something like "abnormality of the fuel and emissions system" or something along the lines of that. With newer cars that have different computers that all work together you see a shitton of codes when one thing goes wrong., What could cause the check emission system, check vsa, and check shawd to come on while driving a 2007 Acura RDX tech? ... Out 2008 Acura RDX (2.3l turbo) check engine light comes on. Been through all the typical stuff and the non-Acura shop (well respected and Honda trained mechanics) ..., La luz de verificación del motor es parte del sistema de diagnóstico de tu automóvil y se ilumina cada vez que hay una falla o algo que solucionar en el sistema eléctrico o mecánico . La luz de Check Engine puede significar diferentes problemas: desde un tapón de gasolina suelto hasta un fallo de encendido en el motor y todo lo demás. En ..., Replace your air filter. Locate your vehicle’s air filter box under the hood near the front corner or engine. Unclip the top of the box and remove it to access the filter inside. Pull out the old filter and vacuum out any debris that’s still inside the box so it doesn’t get into your emission system., 6 posts · Joined 2009. #1 · Jul 3, 2012. My wife drives a 2009 Acura MDX. We bought it new and so far its been reliable with ~ 20K miles on it. However, in the past 4 weeks the "check emissions system" and "check SH-AWD system" light / warning has come on 2 times. After multiple restarts, the warning lights go away., I drive highway (70-80 mph) everyday to and from work. I have tried the "defouler", sea foam, and cataclean. If I disconnect battery the check emissions (0420 code) and SH-AWD warning come on within a day. I am afraid I just need to bite the bullet and replace the cat converter and O2 sensors. Sad, but I plan to drive the vehicle a few more years., An Acura RDX Emission System Diagnosis & Testing costs between $44 and $56 on average. Get a free detailed estimate for a repair in your area. ... That being said, there are many components that can be easily diagnosed and repaired, but, in general, check engine light diagnosis and emission system diagnosis should be left to a professional if ..., If the check engine light is flashing, this means that there is a rigid issue and it is recommended to service your Acura RDX hastily. Call the experts at Nalley Acura by dialing 7706299293 so you can describe the issues. Or decrease your speed and bring your Acura to our certified mechanics as soon as feasible., Last weekend I got the "Service Emission System" message and the Check Engine light came on. Any guesses what my issue might be? I've been considering doing a delete - is now the time to take that plunge? ... I was driving down the road and the service emission system came up and the truck reduced power. The service parking brake also came on ..., Acura will trigger the “check emission system” warning message if there is an issue with the fuel system. It’s crucial to fix this issue quickly because a faulty …, TL. 2010. The 2010 Acura TL check emission system light on means the purge valve is bad. The evap canister, also known as the purge valve, on the car is located to the left of the brake booster and master cylinder on the driver side firewall. The EVAP canister is filled with activated charcoal and is designed to catch the emissions that are put ..., The Acura check engine light codes are alphanumeric codes that indicate the type and source of the problem that triggered the check engine light. These codes can be retrieved using an OBD-II scanner , which is a device that can connect to the car's diagnostic port and display the codes on a screen., The EVAP monitor is non-continuous. This means the system is only tested and monitored under certain conditions. For code P0457 to be set, the ignition must be off, the fuel must be at a certain level and ambient temperature must be within a pre-defined range. Code P0457 is caused by a leak detected in the evaporative emission (EVAP) system., But yesterday, the next thing happened is the "Check emission system" turn on. I don't know why. My car just 2400 miles and oil still yellow. Oil just 50%. ... Check Emission System Acura Mdx nj2pa2nc . 2008-10-06 04:25:19 UTC. take it to the dealer-it is under warranty. ..., Check a vehicle's inspection history. Vehicle Identification Number (VIN) or License Plate Number. View inspection history. Important: A vehicle's license plate number may change. For the most accurate results, enter the vehicle's VIN. Certificates are transmitted to the Department of Motor Vehicles for registration purposes., what does check emission system mean on acura mdx. April 1, 2023. 0. 0. divisions in southwest region of cameroon ..., Mar 14, 2015 · Bought my TSX little over a month ago 2006 6 spd. Haven't had a single problem as of yet, on the way back from philly had my check emission system light come on out of nowhere. So got it scanned at auto store and 4 codes came up, 61-1 battery voltage malfunction, 83-1 ECM/PCM (concerning me most) and P1009 camshaft position stuck at advanced ... , Code P2185, Check Emissions Light w/ CEL. Fixed! Hey guys I read about the code and how it could of been related to corrosion in the sensor pins and/or the connector. I took off my sensor in the bottom of the radiator, there was a bit of corrosion in it, the green stuff you see often in a leaking battery with corroded terminals., Please help! 2014 Honda Pilot Check Emission System lights going off. I'm currently on a road trip late at night in the middle of nowhere and the engine light with "Check Emission System" lights went off with another light saying "VTM-4". Am I still good to go another 200 miles?, In this article, we will discuss the common issue of the "check emission system" message on the dashboard of a 2014 Acura MDX. Many owners have - Dhamaal 94. In this article, we will discuss the common issue of the "check emission system" message on the dashboard of a 2014 Acura MDX. ... Acura MDX Emission System Problem: Troubleshooting and ..., Check emission system Acura TL. When the onboard computer detects a fault in engine performance, transmission, or emissions system, the check engine light or emissions light illuminates. When this happens, a fault code is stored in the computer. This incorrect code is the key to repairing your vehicle when a diagnosis is carried out., Popular Answer. Hello, the warning light that is on has no meaning if the engine is not running. Focus on starting the engine -- sounds like a low or ineffective battery to start with. Have your battery tested for state of charge and the ability to hold a load and go from there. Choose among the best repair shops in the country - those that ..., Here are some actions you can take to check on your 2012 Acura MDX's emission system: Step one 1: Check the "Check Motor" Light ... Understanding and Troubleshooting the Check Emission System Warning in Your 2012 Acura MDX If you possess a 2012 Acura MDX, you may have experienced the Check Emission System warning light at some point. ..., Shut off the MDX and check the oil after at least 2 minutes (This will allow the oil to drip back to the oil pan). 2.-. Remove the dipstick and the oil should be anywhere in between the 2 holes of the dipstick. 3.-. If the oil is reaching the lower hole, add oil until is between or a little bit closer to the top hole., Hi, Acura tech here. A lot of those are triggered by your capless fuel filler neck. Use a flash light, push open the filler neck flap, there's a secondary flap that's stuck open beneath it. If so acura issued a bulletin to fix it for free., How can turn off the check emission light on a 2005 Acura RL. Solid, noticed it yesterday. I checked the gas cap, - Answered by a verified Mechanic for Acura ... 2008 Acura RDX Check emission system & SH-AWD lights are on. I noticed in one of these threads about the same issue a mention of the A/C system. Several weeks ago, ..., MDX. Automatic transmission. 6,000 miles. A D V E R T I S E M E N T S. This problem is now coming up the third time when it first occurred in July first time. I have taken to the dealership twice ..., Oct 3, 2022 · merlinj79. Get a scan tool and reset the codes and emissions monitors. That will probably clear the CEL, but then you have to drive it around for a while to allow the monitors to pass. The scantool will tell you when they pass, if that's successful and no CEL, then you should be good. , What is the Honda Check Emission System error message and how to fix it.Check Emission System Causes:Catalyst Problem CodesExample Code: P0420 code means tha..., The most obvious symptom of a Honda emission system problem is the illumination of the check engine light on the vehicle’s dashboard with the message “check emission system”. The check engine light serves as a warning that a problem has been detected. However, it doesn’t provide specific details about the exact issue, so it’s ...