BMW
Cylinder 1 misfire during start-up. Rough cold start; plug, coil or injector.
P1342 fault code: what it means
P1342: Cylinder 1 misfire during start-up. Rough cold start; plug, coil or injector.
Usual causes, most likely first
- worn spark plug
- weak ignition coil
- leaking injector
P1342 by make
Mini
Cylinder 1 misfire during start-up. Rough cold start; plug, coil or injector.
What the repair usually costs
- Coil packs and spark plugs (4-cylinder)NZ$280–NZ$1,000 · A$260–A$920
- Coil packs and spark plugs (V6 / V8)NZ$490–NZ$1,780 · A$480–A$1,710
- Glow plugs (diesel, set of 4)NZ$250–NZ$850 · A$250–A$850
Not sure what P1342 means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.