Cylinder 1 missfire
#1
Cylinder 1 missfire
I have a cylinder #1 missfire I cant get rid of. Engine runs smooth most of the time and the only way I can feel it is to power brake it at about 1/4 throttle. Have replaced sparkplugs coil injector and intake manifold gasket. What else could be the problem. It is a 2004 maxima and that is the only way I can get it to miss and not every time.
Last edited by Slope40; 01-12-2014 at 08:43 PM. Reason: Added more information
#4
Failing o2 sensor? Check Engine Light on? I was having random misfires. Car would pull fine some days and miss on others. Slowly begun getting worse. Eventually the car threw check engine codes for o2 sensor bank 1 and random misfire. Changed the o2 sensor and performed the Air/Fuel Ratior relearning procedure and car has been fine since.
#5
I changed crank sensor and cam sensor on rear bank. Does front bank have cam sensor too?. Have not changed O2 sensor. Which one should I change or all? How many does it have? I used OEM coil and sparkplugs
#6
Go with camshaft sensor first which is easy to replace but will cost under $100 for sensor. There are 4 O2 sensors and if you have a good scanner then it will be easy to find out if one of the sensor is lazy or not working.
Last edited by KevMaster; 01-15-2014 at 04:11 AM.
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