Home » Duramax LLY » Duramax LLY – TURBOCHARGER OPERATION – Electronic Accelerator Pedal

Duramax LLY – TURBOCHARGER OPERATION – Electronic Accelerator Pedal

The electronic pedal is unique to models equipped with a turbo charged engine. It consists of a pedal, arm, and position sensor (potentiometer), attached to a mounting bracket (Figure 2-9).

The position sensor is a potentiometer that operates like a TPS.
It signals pedal position to the PCM. At boost detent position, the potentiometer signal causes the PCM to close the wastegate valve and generate boost.

 

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