Question about 2002 Chevrolet Impala
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Posted on Jan 02, 2017
nox is from running lean..... its realy high temps that cause this.......... replace the o2 sensors this should cure that any more help let me know
Posted on Oct 24, 2008
I can't answer the question about the gas fumes, but I had the same problem last year with the "Service Traction Sysytem" message and the Trac and ABS lights coming on in my Impala. Mine turned out to be because of a bad wheel bearing, that was causing the ABS and traction system not to work. I'm not sure if you've experienced this, but another thing that would happen with mine was that I would go to brake and have a hard time depressing the brake pedal, almost like it was pushing back. That is the point when the Trac and ABS lights came on.
Posted on Jan 22, 2009
the computer is programmed to work with all devices the car came with. yes, removing the pump can cause this. also, contrary to popular belief, removing the smog pump causes your gas milage to go down.
Posted on Mar 18, 2009
should be emissions lable under hood,will show diagram of emission components that truck was shipped with.If not take vin to local chevy dealer.Service department may be able to pull build sheet from gm global.
Posted on Jun 16, 2009
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