OBD-II code · Powertrain (generic)
P0065 Air Assisted Injector Control Range/Performance
The air-assist injector control system (used on some lean-burn or direct-injection engines to atomize fuel with air) shows a performance deviation from the expected behavior.
Is it safe to drive with P0065?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyAir passage clogged with carbon
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Air Assist Valve, Air Supply
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.