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Home >> Suzuki >> 2006 >> Grand Vitara Base, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> General Description >> OBD System Description - Misfire Monitor >> System Description/Monitoring Procedure
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System Description/Monitoring Procedure

ECM measures the angle speed of the crankshaft based on the pulse signal from the CKP sensor and CMP sensor for each cylinder. If it detects a large change in the angle speed of the crankshaft, it concludes occurrence of a misfire. When the number of misfire is counted by the ECM beyond the DTC detecting condition, it determines the cylinder where the misfire occurred and outputs it as DTC.

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