Question about 2002 Nissan Maxima
6 cyl Front Wheel Drive Automatic 190000 miles
About 2 months ago my "Check Engine" light came on, and when I had it checked out it revealed a problem with the O2 sensor & Knock sensors; I've had both replaced. After having that replaced and driving another 400 miles to allow the computer to reset, and another 5 trips to the emissions testing facility, the computer is still not registering to give the emissions a reading. I had the catalytic converter replaced and that did not fix the sensor problem either. I've had idle air control, but the problem still persists. The "Check Engine" light is now off, but the computer still does not give a reading.
HELP!!! How can I get the computer to provide an emissions reading to get my otherwise dependable car back on the road? Please send the response back to my email ...Along1000m@yahoo.com
There is a section inthe manual that tells you how to prepare the car for emissions test which can take less than 2 hrs without driving 400 miles normally if there still a problem the check eng light will come back on shortly after the preperation. if the eng light comes on in acc position on igition switch and goes off the computer is fine.
Posted on Apr 23, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Mar 17, 2015 | Cars & Trucks
Oct 07, 2012 | 2001 Chevrolet Tahoe
Engine and Automatic Transmission (not applicable to manual
transmissions) in this vehicles drive train are fully electronically
controlled by a computer called the PCM and TCM (Power Train Control
Module, Transmission Control Module). When a problem like this or
other drive-ability related problems occurs the computer stores a
record of the problem (there are of course some exceptions to this,
like the fuel pump, engine coolant temperature sensor and MAF sensor
for instance) 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)
DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED
THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT
MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for
correct spec for your make and engine type.
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