The knock sensor's job is when it senses engine vibration/detonation it will retard the ignition timing.
Stalling can be caused by anything that upsets the air/fuel mixture. This includes vacuum leaks or unmetered air entering the intake manifold downstream of the airflow sensor, a faulty throttle position, MAP or oxygen sensor, dirty fuel injectors, or low fuel pressure to the injectors (weak fuel pump, faulty fuel pressure regulator or restricted fuel filter
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Wednesday, February 4th, 2009 AT 5:10 PM