OBD-II code · Powertrain (generic, extended)
P2175 Throttle Actuator Control System - Low Air Flow Detected
Sustained low air-flow condition detected — slower than P2174 but persistent. Restricted air filter, dirty MAF, or partially-stuck throttle.
Is it safe to drive with P2175?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyAir filter heavily restricted
- PossibleMAF sensor contaminated
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Likely to fail
- Parts involved
- Mass Air Flow Sensor, Intake Air Filter, Electronic Throttle Body
Related codes
- P2174Throttle Actuator Control System - Sudden Low Air Flow Detected
- P2172Throttle Actuator Control System - Sudden High Air Flow Detected
- P2173High Airflow/Vacuum Leak Detected (Slow Accumulation)
- P2176Throttle Actuator A Control System - Idle Position Not Learned
- P2177System Too Lean Off Idle Bank 1
- P2178System Too Rich Off Idle Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.