Throttle Position (TP) Sensor
TP sensor interprets throttle position and movement to identify idle, acceleration, and full throttle positions.
IDLE SPEED
Idle Air Control (IAC) Valve
IAC valve is attached to intake manifold. 6.0L is equipped with 2 IAC valves. One IAC valve is mounted to each throttle body. On all models, IAC valve contains a stepper motor-driven valve, which varies volume of air by-passing throttle valve to maintain idle speed.
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Sunday, October 25th, 2009 AT 7:56 AM