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 (EI) System Description: Notes
| Callout | Component Name |
|---|---|
| 1 | Ignition Coil 1 |
| 2 | Ignition Coil 2 |
| 3 | Ignition Coil 3 |
| 4 | Ignition Coil 4 |
The electronic ignition system is of the direct ignition system (DIS) type and is controlled by the powertrain control module (PCM). The electronic ignition system is composed of the following components:
- The PCM
- The 4 ignition coil assemblies
- The crankshaft position (CKP) sensor
- The camshaft position (CMP) sensor
- The spark plugs
The electronic ignition system provides the following benefits:
- Improved ignition timing accuracy
- Reduced high-voltage losses
- Enhanced overall ignition system reliability
The electronic ignition system components cannot be disassembled or repaired. A component that is correctly diagnosed as faulty must be replaced as a complete unit.
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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.