Question about 1991 Nissan Maxima
1991 Nissan maxima starts great but after a few minutes starts sputtering and spittng like it wants to die. Give it gas and it runs fine, but try to stay at a certain speed and it spits and sputters. Replace all plugs and wired, cap and rotor, fuel filter, mass air flow sensor and throttle position sensor. Engine is throwing no codes. What else could it be ?
Best guess is O2 sensor is reading too much unburned fue in the exhaust for some reason and leaning out the fuel flow to compensate. Runs when you throw more throttle at it but leans out as you try to hold steady speed. Should throw a code though.
Posted on Apr 25, 2013
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Posted on Jan 02, 2017
my truck didn't do the crazy idling so much but it was running a little rough before it finnally died. it just wouldn't start back up. i changed the fuel filter i could hear the fuel pump working i finnally pulled a spark plug out and realized it wasn't getting spark. after hooking a computer module up under the dash it told me that the camshaft position sensor was out. the sensor is integrated into the distributor therefore you have to change the distributor to replace the sensor. hope this helps some, i'm actually trying to fix mine tomarrow
Posted on Dec 04, 2008
Sounds like plugged catalytic converter, Disconnect exhaust in front of Cat. and see what happens. Check to see if you are losing fluid from radiator.
Posted on Jan 12, 2010
I had a similar problem - took it into 'Nissan Professionals' and they changed everything you did as well, and had no luck. After 4 or 5 times working on it, they told me that it was a 'loose wire' that had to be re-soddered and then the problem was fixed. I don't know where the wire was, but they made it sound like it was in or around the fuse panel under the hood.
I hope this might shed some light on the problem.
Posted on Sep 14, 2010
i have had the same problem and it was my mass air flow sensor. and dont by the whole kit from the deal cause it was like 500 buck and you can order one from ebay for like 70
Posted on Jan 05, 2011
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The engine and transmission in this cars drivetrain are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s)
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