Powertrain
generic / SAE
P2074
Manifold Absolute Pressure / Mass Air Flow - Throttle Position Correlation at Higher Load
At higher load, the relationship between MAP/MAF and throttle position does not match the calibrated map — typically a charge-air leak, restricted intake, or wide-open MAF underread.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 74
Possible causes
- Charge-air pipe leak after turbo high
- MAF sensor contaminated medium
- Air filter heavily restricted low
Symptoms
- Check engine light on
- Power loss, hesitation under acceleration
- Rough or unstable idle
- Increased fuel consumption
- Possible difficulty starting
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 40–700 €
- Estimated time: 0.3–3 h
- Component: manifold absolute pressure sensor
- Component: mass air flow sensor
- Component: charge air pipe
- Component: intake air filter
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012