Mechanics

P0122 CODE

2000 Pontiac Grand Prix • 6 cylinder FWD Automatic • 102,395 miles

I have a 2000 Pontiac Grand Prix and am getting a P0122 code. The scan tool indicates 0% for the TPS for all throttle positions (engine off and on). Voltmeter checks at the TPS indicated normal operation of the sensor. Where do I go from here with troubleshooting? Also, the transmission shift points have increased significantly. Shift point for 1-2 is 35 mph. Could these problems be related?
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Shanerbj
November 14, 2010.



What's the voltage on closed and wide open throttle?

Rasmataz
Nov 14, 2010.
The voltage was 0.5 V closed and very close to 5.0 wide open

Tiny
Shanerbj
Nov 15, 2010.