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 System - Electronic (Turbo): Description
The electronic ignition system consists of a magnetic pick-up coil, pole piece and electronic module inside the distributor. The ignition coil is externally mounted.
The spark advance curve is totally controlled by the Electronic Spark Timing (EST) circuitry of the Electronic Control Module (ECM). No vacuum or centrifugal advance mechanisms are used in this system. The ECM monitors crankshaft position, engine RPM, engine load, engine detonation, engine temperature and transmission gear position. The ECM uses this data to compute the desired spark advance. The Electronic Spark Control (ESC) circuitry of the ECM will retard ignition timing when it senses engine detonation.
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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.