P1373
Ignition Coil Cylinder 3 Early Activation Fault
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Misfire in cylinder 3
- Reduced engine power
- Increased fuel consumption
- Rough engine idling
- Check Engine light comes on
Causes
- Malfunction of the ignition coil of cylinder 3
- Problems with coil wiring or connectors
- Engine control unit (ECU) malfunction
- Problems with the crankshaft position (CKP) sensor
- Mechanical problems in the timing system
How to Fix
- Check the condition of the ignition coil of cylinder 3
- Inspect the wiring and coil connectors for damage
- Check the operation of the crankshaft position (CKP) sensor
- Replace the faulty ignition coil
- If necessary, replace the engine control unit (ECU)