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.
Electronic Ignition Timing Control
Ignition timing is controlled by PCM and is not adjustable. If ignition timing is not within specification, check for an engine mechanical failure. To check ignition timing, see ELECTRONIC IGNITION TIMING INSPECTION. If ignition signal is not present at PCM, Diagnostic Trouble Codes (DTCs) P1300 and P1310 can set in PCM memory. For testing procedures, see TESTS W/CODES article.
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.
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