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 Advance
Ignition timing is controlled by Engine Control Module (ECM). If ignition signal is not present at ECM, DTC 41 will set in ECM memory. For testing procedures, see TESTS W/CODES - 1.0L 3-CYL article. If a fault occurs in camshaft position sensor circuit or camshaft position sensor fails, DTC 42 will set in ECM memory. For testing procedures, see TESTS W/CODES - 1.0L 3-CYL article. For adjusting procedures, see IGNITION TIMING in the ADJUSTMENTS - 1.0L 3-CYL 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.