Question about 2000 Chevrolet 2500
Throttle Position Sensor Replacement
Tighten the screws to 2 N·m (18 lb in).
Posted on Jun 27, 2009
I have a 95 GMC 3500HD with a 7.4 engine. The fuel pump went bad, I changed it and the filter. Ever since it won;t idle and it hesustates on low speed acceleration. It is also running very rich or my fuel economy has dropped. It has plenty of power and acceleration above 10 miles an hour. help! I am beside my self trying to figure this out. There is also no check engine light.
Posted on Jan 20, 2010
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Posted on Jan 02, 2017
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TPS not mounted securely.
TPS circuit short to ground or another wire.
Damaged computer (PCM).
to fix this code you can try this:
Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.
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