I was wondering if you are using the cheapest gas, low octane, could that cause your check engine light to go on, could the gas affect the knock sensor or the o2 sensors?

 

Please, dont use cheap gas man ...this is way bad ... to each his own ... as for as check engine i dont know . if you have been using 87 for years it might be responsible for something going amok

 

well, i just bought my max and the mechanic checked the car out, everything seems to be fine, but hte check engine light is on i was wondering if it could be the gas? can someone send me a link on how to check the ecu codes?

 

The chances that a bad tank of gas would cause enough problems to trip the light are pretty remote. It would have to be a pretty serious issue.

Info on codes is here: http://forums.maxima.org/showthread....hreadid=104931

 

I used 87 95% of the time on my 96 GXE and NEVER had ANY problem mentoned here. 87 gas is acceptable said in owner's manual so don't worry about it.