Question about 1996 Nissan Maxima

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I have a 1996 Nissan Maxima with a cylinder #3 misfire

The error code is p0303, I have changed the spark plugs but still a problem. I have looked around and it seems that nobody know what the problem is for sure. It seems I'm not the only nissan owner with this problem. I've read many postings with the same problem, but know one knows what to do. Any help would be appreciated.

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If our coil is sparking and good plug ive seen manny time carbon loose and sticking on the valve valve stay open doesnt build up compression = missing check our coil if its firing go on the road rev the engine like leave it in 2nd gear drive like that overreving the engine might loosen the carbon dont rev it to mush it cost nothing to try that and it work for me a few time pierre

Posted on Dec 13, 2008


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Code p0303 changer coil bougi et injecteur sur le piton 3 et verifier le couran sur injecteur et coil ces correcte et le code p0303 revien et le moteur a des rater quoi faire

P0303 Code - Cylinder #3 Misfire
A code P0303 may mean that one or more of the following has happened:
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1 Answer

Code p0303

P0303--"Cylinder 3 Misfire Detected". The PCM detected a misfire on cylinder 3,most likely an ignition issue.If your engine has one coil per cylinder,see if you can swap the coils(don't forget to mark the suspect coil).You will have to clear the existing code(the PCM will usually disable the fuel injector on the dead cylinder).See if a different code now sets(P0301 is cyl 1,p0302 is cyl 2,etc).If the code is the same,you will want to look at the plug(and wire,if your engine has plug wires).You could swap the wire and plug (one at a time) to see if the code changes with any of these.Of course,this is easier if you have your own code sanner(you can get a basic one for under 50 bucks-that's all I have,and it gets the job done!) If none of the parts swapping finds the solution,you can do similar swaps on the fuel injectors,but it is a little more work than the ignition stuff.

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I have a cylinder #4 misfire code #P0304 on a 2000 Nissan maxima. How do I fix this problem?

Try this first: change spark plug for that cylinder and replace spark plug wire for same cylinder.

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Put a new fuel pump and spark plug had codes p0113,p0303 and p1122 car turn over kind want to start we think it a fuse or fusible link an friends said it the computer

P0113 (IAT sensor/circuit faulty)
P0303 (cylinder 3 misfire/random misfire)
P1122 (electric throttle control performance problem)
are you getting fuel and spark at every cylinder?? Were the new plugs gapped??

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2001 ford taurus error code p0303

That is a cylinder misfire code have you had the plugs changed, could be a bad plug maybe bad coil, or injector how does it run

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I have a 1999 nissan maxima 5 spd. the check engine light flashes while i'm accelerating. It finally stayed on for a breif while, the code read p0303 (cylinder 3 misfire) what can i do to solve it?

if there is a misfire in the #3 cylinder i would suggest checking the spark plug to see if it is dirty or oiley etc other than that the ht leads hope this helps regards Jim

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