BMW DTC P1347 – Misfire Cylinder 3 with Fuel Cut-Off
DTC P1347 meaning on BMW
DTC P1347 for BMW indicates a misfire in cylinder 3 with fuel cut-off. This means that the engine control module (ECM) has detected a misfire in the third cylinder of the engine, leading to the fuel supply being cut off to that cylinder to prevent any potential damage.
BMW DTC P1347 symptoms
Symptoms of DTC P1347 on a BMW may include rough idling, loss of power, engine hesitation, increased fuel consumption, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P1347 causes
The common causes of DTC P1347 on a BMW include faulty ignition coils, spark plugs, fuel injectors, vacuum leaks, wiring issues, or a problem with the engine control module (ECM).
BMW DTC P1347 seriousness
Ignoring DTC P1347 on a BMW can lead to further engine damage, reduced fuel efficiency, and potential catalytic converter damage. It is important to address this issue promptly to prevent any long-term issues.
How to diagnose DTC P1347 on BMW
To diagnose DTC P1347 on a BMW, start by using a diagnostic scanner to retrieve the fault codes. Perform a visual inspection of the ignition system components, such as the ignition coils, spark plugs, and wiring. Check for any vacuum leaks or fuel injector issues. Conduct a compression test to ensure the engine’s mechanical health.
How to fix DTC P1347 on BMW
To fix DTC P1347 on a BMW, start by addressing the root cause of the misfire. Replace any faulty ignition coils, spark plugs, or fuel injectors. Repair any vacuum leaks or wiring issues. Ensure proper engine timing and perform a thorough inspection of the engine components. Clear the fault codes and test drive the vehicle to confirm the issue has been resolved.
How to erase DTC P1347 on BMW
To erase DTC P1347 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. Once the repairs have been made and the issue resolved, connect the scanner to the vehicle’s OBD-II port and follow the on-screen instructions to clear the DTC P1347 code.
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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