U0610Lost Communication With Mass or Volume Air Flow Sensor B
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Air flow sensor B is the second meter on engines that measure each intake path separately, typically one per bank on V engines with two air boxes. In GM's documents 23OBDG07 and 24OBDG07, written for an engine with two throttle bodies, U060F stands for bank 1 and U0610 for bank 2: the code sets when the digital sensor itself reports a time overflow or a maximum-period violation for 1.5 s with battery voltage above 9 V, and the MIL follows on the second trip. Ford's 2024 gasoline summary is an exception, filing its digital air flow sensor B under U0612. P010A to P010E concern an analog sensor B, and P010F compares the two meters. Without sensor B the controller relies on sensor A and models for that bank.
- What you may notice
- Check engine light after the second trip on GM
- Uneven running or slightly reduced power
- Likely causes
- LikelySignal, supply or ground wire to air flow sensor B damaged
- PossibleAir flow sensor B electronics failed or contaminated
- PossibleMoisture or loose terminal at sensor B connector
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.