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The ECM receives a signal from the Knock sensor based on the amount of engine ping detected. The ECM uses information from this sensor to help calculate fuel delivery and spark timing.
Fault Code Description
Q&A > Chevrolet > 2001 Chevrolet Silverado 2500 HD
Q&A > Chevrolet > 2001 Chevrolet Venture
Q&A > Jeep > 2001 Jeep Wrangler
Q&A > Subaru > 1993 Subaru Loyale
Q&A > Toyota > 1990 Toyota Pickup
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