P2138 Diagnostic Trouble Code Discussion for November 2025
Accelerator Position Sensor 1-2 Correlation
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| Help Request | Posted | |
| 2018 Mercedes-Benz C300 2.0L Poor Idle Quality, Hesitation, Surge, Poor Fuel Economy, MIL Lamp on, Cranks excessively VIN: 55SWF4JB2J P2138: Values from the position sensors of the accelerator pedal are implausible. Customer concerns, vehicle takes a long time to start, Check Engine Light is on, Vehicle goes into limp home mode. We verified the complaints and we pulled codes. We had codes for several sensors and the gas pedal. We have replaced these sensors and the ga... |
November 06, 2025 |
