Crank Signal
Engine start signal, sent from starter circuit, is used by ECM to determine when engine is cranking. Using this signal, ECM calculates fuel injection timing, Idle Air Control (IAC) valve and throttle opener solenoid vacuum valve.
Engine start signal, sent from starter circuit, is used by ECM to determine when engine is cranking. Using this signal, ECM calculates fuel injection timing, Idle Air Control (IAC) valve and throttle opener solenoid vacuum valve.