P0351
Ignition Coil "A" Primary/Secondary Circuit Malfunction (Cylinder 1)
An electrical fault is detected in both the primary and the secondary circuit of ignition coil A (cylinder 1). The ECU cannot drive the coil correctly, so the cylinder served by coil A misfires or does not fire at all. Causes: an open or shorted primary control wire, an internal coil winding fault, a failed igniter/driver, or wiring or connector damage at the coil.
Possible causes
- Coil primary winding open or shorted high
- Wiring or connector fault medium
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 40–300 €
- Estimated time: 0.2–1.5 h
- Component: ignition coil
- Component: ignition coil wiring
- Component: ecu ignition driver
- MIL / check engine light
- emissions-relevant
- drive cycle required