Wide Open Throttle
This is an OPEN LOOP mode.
During wide open throttle operation the PCM receives the following inputs:
- Engine coolant temperature (ECT) sensor
- Manifold absolute pressure (MAP) sensor
- Throttle position sensor (TPS)
- Crankshaft position (CKP) sensor
During wide open throttle conditions the following occurs:
- The PCM ignores the oxygen sensor input signal and adjusts injector pulse width, providing a predetermined amount of additional fuel.
- The PCM disengages the A/C compressor clutch through the clutch relay.