OBD-II code · Powertrain (generic)
P0611 Fuel Injector Control Module Performance
Modern direct-injection systems use a dedicated injector driver module that generates the high-voltage charge pulses needed to open piezo or solenoid injectors. The module reports an internal performance fault.
Is it safe to drive with P0611?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyDriver module internal fault
- Less likelyModule software outdated, reflash may resolve
- Less likelySupply voltage outside specification
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–6 h
- Emissions test
- Likely to fail
- Parts involved
- Fuel Injector Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.