Powertrain, generic · Fuel and air metering, auxiliary emission controls
P007A Charge Air Cooler Temperature Sensor Circuit Bank 1
Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible
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. P007A is the general circuit fault of the bank 1 sensor; low and high signals have their own codes. No manufacturer description naming this exact code was found.
Likely causes
Connector or wiring faulty, oil in the connector from crankcase vapours
Sensor faulty
Ground or 5 V supply disturbed (often shared with the boost pressure sensor)
Engine control module faulty
Symptoms
- Check engine light on
- Reduced power possible, especially on diesels
- Often no noticeable symptoms
Repair estimate
DifficultyEasyDIY possible
Parts and labour€80–250
Time0.3–1 h
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
charge air cooler temperature sensorcharge air cooler temperature sensor wiringboost pressure sensor
Related codes
References: law.cornell.edu, newtonnet.co.uk, en.wikipedia.org.