P0267
ModerateP0267 — Low Voltage in Cylinder 3 Fuel Injector Circuit
Description
What the Code Means
Code P0267 points to low voltage in the cylinder 3 fuel injector circuit. The engine control unit (DME) detects a short to ground or an injector with reduced resistance. Causes can be a shorted injector, damaged wiring, or a DME fault.
Symptoms
Symptoms
- Misfires in cylinder 3
- Rough running
- Loss of power
- Check Engine light comes on
Causes and fixes
Diagnosis and Repair
Step 1: Measure Injector Resistance
- Disconnect the cylinder 3 fuel injector connector.
- Measure resistance between the injector terminals with a multimeter.
- Normal value: 12–16 ohms. If resistance is lower, the injector is faulty.
Step 2: Check the Wiring
- Check the injector circuit for a short to ground.
- Use a multimeter to check continuity of the wires from the DME to the injector connector.
Step 3: Replace the Injector
- If the injector doesn't meet spec, replace it with a genuine BMW unit (
13647597896).
Step 4: Check the DME
- If the wiring and injector are good, the DME may be faulty. Diagnose with ISTA or INPA.
Possible secondary damage
Secondary Damage
Ignoring the fault can lead to:
- Catalytic converter damage from unburned fuel.
- Increased fuel consumption.
- Poorer engine running and higher emissions.