Wide-Open-Throttle Mode

This is an OPEN LOOP mode. During wide-open-throttle operation, the following inputs are used by the PCM:

1. Inlet/Intake air temperature
2. Engine coolant temperature
3. Engine speed
4. Knock sensor
5. Manifold absolute pressure
6. Throttle position

When the PCM senses a wide-open-throttle condition through the APPS it de-energizes the A/C compressor clutch relay. This disables the air conditioning system and disables EGR (if equipped).

The PCM adjusts injector pulse width to supply a predetermined amount of additional fuel, based on MAP and RPM.