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.
Ignition Timing Control System
Ignition timing control system provides detonation control, cold timing control and high altitude timing control. During detonation, ignitor retards ignition timing (maximum 12 degrees at crankshaft). If detonation sensor has an open or short, ignitor retards ignition timing by a fixed angle (8 degrees at crankshaft). When coolant temperature is low or vehicle is at an altitude of 3937 ft. or higher, ignition timing is advanced a fixed angle (5 degrees at crankshaft).
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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