Symptoms

- Engine Light ON (or Service Engine Soon Warning Light) - Lack/loss of power - Hard start - Engine hesitation

Possible Causes

- Faulty spark plug 6 - Faulty ignition coil 6 - Ignition coil 6 harness is open or shorted - Ignition coil 6 poor electrical connection - Clogged or faulty fuel injector 6 - Injector 6 harness is open or shorted - Injector 6 poor electrical connection - Improper spark plug 6 - Insufficient cylinder 6 compression - Incorrect fuel pressure - Intake air leak

When Detected

Engine Cylinder 6 is Misfiring.

Description

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.