BMW DTC P1345 – Misfire Cylinder 2 with Fuel Cut-Off
DTC P1345 meaning on BMW
DTC P1345 on a BMW indicates a misfire in cylinder 2 with fuel cut-off. This means that the engine control module (ECM) has detected a misfire in cylinder 2 and has temporarily cut off fuel to that cylinder to prevent damage to the catalytic converter.
BMW DTC P1345 symptoms
Symptoms of DTC P1345 on a BMW may include rough idling, loss of power, engine hesitation, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P1345 causes
The common causes of DTC P1345 on a BMW include faulty ignition coils, spark plugs, fuel injectors, vacuum leaks, or issues with the engine’s mechanical components.
BMW DTC P1345 seriousness
Ignoring DTC P1345 on a BMW can lead to further damage to the engine and the catalytic converter. It is important to address this issue promptly to prevent more severe problems.
How to diagnose DTC P1345 on BMW
To diagnose DTC P1345 on a BMW, a mechanic would typically perform a thorough inspection of the ignition system, fuel system, and engine components. This may involve checking the ignition coils, spark plugs, fuel injectors, and conducting a compression test to identify the root cause of the misfire.
How to fix DTC P1345 on BMW
Fixing DTC P1345 on a BMW involves addressing the underlying cause of the misfire. This may include replacing faulty ignition coils, spark plugs, fuel injectors, or repairing any vacuum leaks. It is essential to follow the manufacturer’s recommended procedures and use quality replacement parts.
How to erase DTC P1345 on BMW
Once the underlying issue causing DTC P1345 on a BMW has been fixed, the diagnostic trouble code can be erased using a compatible OBD-II scanner. This will reset the Check Engine Light and allow the ECM to monitor the system for any new faults.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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