Misfire Cylinder 4 With Fuel Cut-Off
1997-2000 BMW 528i E39 2.8L I6 🇦🇺
Description
The DME detected a severe misfire on Cylinder 4 triggering fuel cut-off to protect the catalytic converter. This is a catalyst protection strategy that disables fuel delivery to the misfiring cylinder.
Symptoms
- Check Engine Light flashing
- Rough running
- Reduced power
- Engine vibration at idle
Common Causes
- Faulty ignition coil Cylinder 4
- Worn or fouled spark plug Cylinder 4
- Injector failure Cylinder 4
- Low compression Cylinder 4
- Intake manifold leak
Diagnostic Steps
- Check misfire counters
- Swap ignition coil from Cylinder 4
- Replace spark plug Cylinder 4
- Test injector Cylinder 4
- Compression test
Repair Notes
Replace the faulty ignition component on Cylinder 4.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1348 on Other Vehicles
Common Questions
What does code P1348 mean on a 1997-2000 BMW 528i E39?
P1348 stands for "Misfire Cylinder 4 With Fuel Cut-Off". The DME detected a severe misfire on Cylinder 4 triggering fuel cut-off to protect the catalytic converter. This is a catalyst protection strategy that disables fuel delivery to the misfiring cylinder.
What are the symptoms of P1348 on a BMW 528i E39?
Common symptoms of P1348 include: Check Engine Light flashing, Rough running, Reduced power, Engine vibration at idle.
What causes P1348 on a 1997-2000 BMW 528i E39?
Common causes of P1348 include: Faulty ignition coil Cylinder 4, Worn or fouled spark plug Cylinder 4, Injector failure Cylinder 4, Low compression Cylinder 4, Intake manifold leak.