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P2138

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2009 Buick Lacrosse is setting DTC codes P2125 and P2138.

Hi there. Try performing a snap throttle and see if the wave form changes on the Oscilloscope. If the waves do not change when performing a snap throttle, then the throttle position sensor on the pedal needs replaced. If the...

On slow moving traffic, when i release the brakes, the car has lags for half a second before take off... computer scan shows p2138

This code is related to a faulty throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement). The throttle position sensor (TPS) is a sensor used to monitor the throttle position of a vehicle. The sensor is usually located on the butterfly spindle/shaft so that it...

I get trouble code P2138, but I have cleared it and the car works for a while. Now I am getting trouble code P2127 along with P2138.

Hi there. The pedal position sensor on the gas pedal has lost signal for the switch 'E' and 'D'. The code P2138 (https://www.yourmechanic.com/article/p2138-obd-ii-trouble-code-throttle-pedal-position-sensor-switch-d-e-voltage-correlation-by-andrew-quinn) means that the computer has discovered a malfunction with the pedal sensor. Check the harness to the...