OBD-II Code BMW

P1342 — BMW — Misfire During Start Cylinder 1

The ECU detects a misfire on cylinder 1 specifically during engine start.

Brand BMW
System Ignition System
Severity Medium
Safe to drive? Not recommended
Advanced scanner Yes

What does code P1342 mean on BMW vehicles?

The ECU detects a misfire on cylinder 1 specifically during engine start.

Common symptoms

  • Rough or irregular starting

Possible causes

  • Faulty spark plug
  • ignition coil
  • or injector on cylinder 1

Initial recommendation

Inspect and test ignition and injection components on cylinder 1.

Safety notice

This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine BMW code P1342 with your vehicle's actual symptoms for more complete diagnostic guidance.

Go to the app View more brands