Question about 2003 Honda Accord

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My 2003 honda accord v6 has 86k and the check engine is on the computer read out says po302 bad combustion on cilender 2 how can i fix it?

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Take the car to a qualified mechanic for a complete engine combustion/emissions analysis. The mechanic will be able to pinpoint the problem you are experiencing and recommend the appropriate service.

Posted on Jul 24, 2009

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My Honda Accord 2001 Check Engine light came on this morning. What could be the problem?


check engine light is set when the computer gets bad readings from sensors. you can try an auto parts store to get a reading of why a light came on. autozone and advanced auto parts both do it for free. then you can get the parts from them to fix it. it would be about time for an oxygen sensor to go bad. this should reduce performance and gas mileage. any diveablility issues with the car? if this helps please reply and good luck

May 05, 2010 | 2001 Honda Accord

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Why is my 1997 expedition showing a misfire on number 2 cylinder OBD code PO302. Also I am getting code readings PO174 andPO171 system to lean on Bank 1and 2


PO302 is being a misfire, could mean the plug is bad or the coil is bad for that cylinder. Which can give you the misfire reading and the system to lean codes. Check the #2 coil for firing.

Jan 28, 2010 | 1997 Ford Expedition

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My 02 honda accord is loosing exsessive oil I have to pour a quart in every week. Don't see it on the ground or anywhere else. Not coming out of the tail pipe where did it go and how do i fix it.


what it probably is is you need new piston rings. the oil is splashed up from the crank case onto the bottom of the pistons, which keeps them lubricated. the piston rings are what seal the combustion chamber off from the crank case and when they go bad, oil gets into the combustion chamber and is burned.

Jan 02, 2010 | 2002 Honda Accord

3 Answers

1997 honda accord ex for 9 years , check engine light came on


The first thing to check is if the fuel cap is on tight. If it was loose, just tighen it up and drive it, it will go off on its own. If it was tight, then you will need a shop to read the Trouble Code and they will need to diagnose it from there. Find a shop that does Honda work, keep away from any chain stores.

Dec 31, 2009 | 1997 Honda Accord

2 Answers

I have a Honda Accord 2003, how can i fix a downstraem Oxygen sensor.. does this affect the gas cosumtion performance.. how can i fix this.. Help.!


o2 sensor is very important part to the engine when it come to the fuel economy. o2 sensor send information to the computer (ECU) which compute and calculate ratio of burnt exhaust gases. if the engine is not run properly either is too lean or too rich the o2 sensor will detect it as the car will triger the check engine light. you can drive the vehicle which will not hurt it as long you can tolerated the light however the car will get terrible gas mileage and poor performance as the ECU will try to lean the engine out itself. o2 sensor is fairly cheap to replace and fix. Let assume the car get 30 mpg on the high way, running with check engine light/bad o2 sensor will change the gas mileage to 18-25 mpg. If the car is V6 make sure you replace o2 on both side. good luck!

Nov 23, 2009 | 2003 Honda Accord

2 Answers

Check engine light comes on and off, auto zone test read back EGR flow insufficient/manufact.specif.DTC/see service manual.what does any of that mean?HONDA ACCORD 4CYL.2001


The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. When the EGR valve goes bad, it must be replaced.

The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on acceleration.

Here is a picture of where the EGR Valve is located (Accord 1999). Replacing it is fairly simple and straightforward. A vacuum line and a couple of bolts. You'll see what you have to do when you look at it.

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If you are replacing the EGR Valve due to the Check Engine Light (MIL) being on with a DTC P0401 then I suggest contacting your Honda Dealer. There was a Product Update Campaign (PUD) in the fall of 1999 that corrected the problem.

Another times, the clean is the solution...I hope help yoiu with this. Good luck, and remember rated this help.

Sep 03, 2009 | 2001 Honda Accord

1 Answer

Honda accord 2003 v6


If you live near an AutoZone they used to offer free check engine light diagnostics.
See what code they can retreive from the computer with their device and check it against the list of codes. It may not just be a missing Gas cap code. There are hundreds of codes computers can return.

Best Wishes.

www.techvisitor.com

Nov 18, 2008 | 2003 Honda Accord

2 Answers

1992 honda accord


did u think to check the engine to see if u blew a wire or burnt one out, did u check the fuses on your car, or try the engine combuster to see if it is working right

Jul 28, 2008 | 1992 Honda Accord

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