Code
P1319
BMW misfire
Misfire cylinder 1 with fuel cut
BMW: cylinder 1 misfire severe enough to cut fuel.
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Most likely causes
- Faulty coil or plug
- Injector fault
- Low compression
Symptoms you may notice
- Rough idle
- Check engine light
- Loss of power
Checks to run
- Read misfire counts
- Swap the coil
- Check the plug
- Compression test
Tools you may need
OBD-II scanner
Compression tester
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.