Question about 2002 Chevrolet Astro
A MAF can also be set if you have a partial plugged catalytic, or a stetch chain ,a stretch chain I would doubt,But a pulgged catalytic yes,As for the thermostat yes it can wake the 02 sensor when a vehicle is not at operating temperature your system goes in open loop,which ignores the 02,As for the torque convertor clutch you would have a code for it not a MAF code, and by the way a leaky fuel pressure regulator can cause your problem also
Posted on Nov 10, 2012
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Posted on Jan 02, 2017
change your O2 sensors. Try the airfitler, fuel filter and make sure your getting sufficient fuel pressure.
Guru Premium Expert @ Fixya.com
Posted on May 30, 2010
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