2017-10-10
Illuminated check engine light
Poor engine performance
Reduced fuel economy
Engine may misfire or hesitate
Failed knock sensor
Faulty wiring or connections in the circuit
Loose or corroded electrical connections
Failed engine control module (ECM)
Knock Sensor: Knock sensor detects knocking in the engine
Replace the knock sensor
Check and repair any damaged wiring or connections
Tighten or clean any loose or corroded electrical connections
Replace the engine control module (ECM) if necessary