OBD codes / P0358
P0358
SeriousIgnition Coil H Primary/Secondary Circuit (Cylinder 8)
Address promptly — can worsen or affect drivability.
Likely causes
- faulty ignition coil on cylinder 8
- coil wiring or connector fault
- driver circuit problem
Common fixes
- replace the cylinder 8 ignition coil
- inspect the coil wiring and connector
Seeing P0358 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0358 for my vehicleGeneric OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.