BMW DTC P1307 – Ignition Monitoring Cylinder 7 Spark Duration Too Short
DTC P1307 meaning on BMW
The DTC P1307 on a BMW indicates that the Engine Control Module (ECM) has detected that the spark duration for cylinder 7 is too short. This means that the ignition system is not providing the proper spark duration for optimal combustion in cylinder 7.
BMW DTC P1307 symptoms
Symptoms of DTC P1307 on a BMW may include:
- Engine misfires
- Rough idle
- Loss of power
- Check Engine Light (CEL) illuminated
BMW DTC P1307 causes
Common causes of DTC P1307 on a BMW include:
- Faulty ignition coil for cylinder 7
- Worn spark plugs
- Ignition system wiring issues
- ECM software issues
BMW DTC P1307 seriousness
Ignoring DTC P1307 on a BMW can lead to poor engine performance, decreased fuel efficiency, and potential damage to the catalytic converter. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P1307 on BMW
To diagnose DTC P1307 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the ignition coil for cylinder 7 for any signs of damage
- Check the spark plugs for cylinder 7 for wear or fouling
- Inspect the ignition system wiring for any loose connections or damage
How to fix DTC P1307 on BMW
To fix DTC P1307 on a BMW, you can try the following solutions:
- Replace the ignition coil for cylinder 7
- Install new spark plugs for cylinder 7
- Repair any damaged wiring in the ignition system
- Update the ECM software if necessary
How to erase DTC P1307 on BMW
To erase DTC P1307 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM memory. Once the codes are cleared, you can drive the vehicle and monitor for any recurrence of the issue.
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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