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2007 Chevrolet Monte Carlo P2138 Fault Code: Service Stability System & Engine Power Reduced

Model: 2007 Monte Carlo Fault Code: P2138 Posted: 2010-11-09 19:05

I've recently started experiencing the 'Service Stability System' message, which is immediately followed by 'Engine Power Reduced.' After connecting my vehicle to an OBD2 scanner, the fault code P2138 was detected. This error appears to be related to the throttle position sensor (TPS) or pedal position sensor/switch D/E voltage correlation. I'm looking for accurate diagnosis and potential fixes. Any insights would be greatly appreciated!

Related fault codes
P2138
Comments (1)
Anonymous 2010-11-29 08:21

P2130 Error Code P2138 indicates a voltage correlation issue between the Throttle Position Sensor (TPS) or Pedal Position Sensor/Switch D/E. This can lead to incorrect throttle input readings, triggering the stability system and engine power reduction in vehicles like the 2007 Chevrolet Monte Carlo.