Chevrolet Aveo code P2135 indicating throttle/pedal position sensor voltage correlation issue causing stalling on Chevrolet Aveo

Some Chevrolet Aveo owners report experiencing issues related to the P2135 trouble code, which indicates a voltage correlation problem between the throttle and pedal position sensors. This discrepancy can lead to improper fuel delivery, ignition timing issues, and overall engine performance problems. Common symptoms reported include the check engine light illuminating, limited power, stalling or hesitation, stalling after stopping, and the engine revving unexpectedly without pressing the gas pedal. A primary cause of the P2135 code is often linked to problems with the accelerator pedal position sensor wiring, such as being broken, frayed, or having intermittent connectivity. These issues can significantly impact the performance of the Aveo, which utilizes a "drive by wire" throttle system reliant on sensors and actuators to manage the throttle body.