Powertrain
generic / SAE
P2149
Fuel Injector Group B Supply Voltage Circuit/Open
The ECU detects an open or missing supply voltage on injector group B. The injectors on this bank cannot be energized, leading to misfire on the affected cylinders.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 49
Possible causes
- Blown injector group B fuse high
- Faulty injector supply relay medium
- Pin pushed back out of connector body low
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.3–1.5 h
- Component: fuel injector
- Component: injector supply relay
- Component: injector wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012