Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Procedures
- Turn ignition off for 10 seconds. Using scan tool, monitor CMP RESYNC COUNTER while the following: Start engine and slowly accelerate to wide open throttle 5 times. Let engine idle for 30 seconds. If any counts are present, go to next step. If no counts are present, problem is intermittent. See DIAGNOSTIC AIDS .
- If engine cuts out when count(s) were showing up on scan tool, repair intermittent open in 7X ref. circuit. Check the following:
- CKP sensor mounting bolt for tightness.
- Connections on Yellow wire and Purple wire between PCM and CKP sensor.
- Connections on Red/Black wire between PCM and EI module.
- Connections on EI module power and ground (Pink wire and Black wire).
If engine does not cut out when count(s) were showing up on scan tool, check for Electromagnetic interference (EMI) on crankshaft sensor circuit or 7X ref. circuit. Check harness routing to make sure it is away from battery cables and attached to appropriate clips and retainers. Check generator/starter for electrical noise.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.