P0122 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

OBD-II Trouble Shooting Got a code reader? Find out what your GM car's Check Engine light is trying to tell you (and then turn Check Engine light off).

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Old 09-24-2009, 04:06 PM   #1
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Default P0122

P0122 Code


Throttle Position (TP) sensor measures amount of throttle
opening. PCM uses TP sensor information for fuel delivery
calculations. TP sensor readings during acceleration are much higher
than those during deceleration or idle.

  • Rough or low idle
  • Stalling
  • Surging
  • No/little acceleration
  • Stuttering
  • TPS not mounted properly
  • TPS plug or wires damaged
  • Defective TPS
  • Damaged computer (PCM)
Possible Solutions
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obd2, obdii, p0122, p122

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