2017-10-10
Check the timing belt/chain for wear or damage and replace if necessary.
Inspect the crankshaft and camshaft position sensors for proper alignment and functioning. Clean or replace as needed.
Check the wiring and connections for the crankshaft and camshaft position sensors. Repair or replace any damaged or loose wiring.
Verify the engine's timing by using a timing light and adjusting if necessary.
Faulty crankshaft or camshaft position sensor
Timing belt or chain is worn or damaged
Engine control module (ECM) or powertrain control module (PCM) malfunction
Damaged or faulty wiring or connectors in the crankshaft or camshaft position sensor circuit
Mechanical failure in the engine, such as a seized or damaged crankshaft or camshaft
Engine misfires or runs rough
Engine stalls or has difficulty starting
Decreased engine performance or power
Poor fuel efficiency
Illuminated check engine light