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HOMESERVICE MANUALSCHEVROLET1999MONTE CARLO LS, 3.8 KREPAIR AND DIAGNOSISENGINE PERFORMANCESPECIFICATIONSENGINE ADJUSTMENTSTHROTTLE POSITION (TP) SENSORTP SENSOR LEARN (4.0L & 4.6L)
1999 Chevrolet Monte Carlo LS, 3.8 K

TP Sensor Learn (4.0L & 4.6L)

1999 Chevrolet Monte Carlo LS, 3.8 KSECTION TP Sensor Learn (4.0L & 4.6L)
NOTE: Ensure accelerator and brake pedals are free from any obstructions while performing TP sensor learn procedure. PCM will not perform learn function with accelerator pedal or brake pedal obstructions.
  1. If a new TP sensor, throttle body or PCM is installed, PCM must learn new TP sensor offset. This procedure is necessary since TP sensor is not adjustable and may be produced by more than one manufacturer, causing varying tolerances during minimum air adjustment.
  2. High idle at closed throttle or a stall condition may occur if PCM maintains an improper TP sensor offset. To perform TP sensor learn, turn ignition on, leaving engine off. Wait 30 seconds, then turn ignition switch to LOCK position. Wait an additional 30 seconds and repeat.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.