Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 75
Possible causes
- Air filter heavily restricted high
- MAF sensor contaminated medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 20–300 €
- Estimated time: 0.3–2 h
- Component: mass air flow sensor
- Component: intake air filter
- Component: electronic throttle body
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012