Operation CHARM: Car repair manuals for everyone.

Exhaust Gas Recirculation (EGR)

ECM

The PCM calculates the amount of EGR needed based on the following inputs:
- The accelerator pedal position (APP) sensor
- The barometric pressure (BARO) sensor
- The boost sensor
- The engine coolant temperature (ECT) sensor
- The exhaust gas recirculation (EGR) vacuum sensor
- The intake air temperature (IAT) sensor
- The mass airflow (MAF) sensor
- The vehicle speed sensor (VSS)
- The engine speed