P007BCharge Air Cooler Temperature Sensor Circuit Range/Performance 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
- The charge air cooler temperature sensor (an NTC thermistor) measures the temperature of the compressed charge air at the charge air cooler, depending on the manufacturer upstream or downstream of it, and is often combined with the boost pressure sensor. The engine control module uses it for the air mass calculation, boost control, component protection and to monitor cooler efficiency. P007B is a plausibility check: at a start after a long standstill the sensor is compared with other temperature sensors such as intake air or coolant, which should then agree. Some systems also check while driving whether the reading stays implausibly high.
- What you may notice
- Check engine light on
- Reduced power possible, especially on diesels
- Often no noticeable symptoms
- Likely causes
- LikelySensor drifting or oil-coated and slow to respond
- PossibleWrong sensor fitted
- PossibleComparison sensor faulty
- RareCharge air cooler efficiency or airflow impaired
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €80 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.