P00C7Intake Air Pressure Measurement System - Multiple Sensor Correlation Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- With the engine stopped, all pressure sensors in the intake system (manifold pressure, boost pressure, barometric pressure) should read ambient pressure; some diesels also compare them at idle. The control module compares them: if one sensor stands out, it sets that sensor's own code. P00C7 is set when the readings disagree but no single sensor can be identified as faulty, which points to a fault affecting several sensors, such as a shared reference voltage or ground.
- What you may notice
- Check engine light on
- Often no further symptoms
- Substitute values with loss of power possible
- Likely causes
- LikelyShared 5 V reference or ground of the pressure sensors disturbed
- PossibleTwo sensors drifting at the same time (contamination, oil mist, ageing)
- PossiblePressure hose to a sensor leaking or blocked
- RareEngine control module or software
- 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: €50 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.