P0185low severityPowertrain
Fuel Temperature Sensor B Circuit
on 2014 Audi Q7 3.0L Supercharged V6 · AWD
What this code means
There is a general fault in the second fuel temperature sensor circuit. The PCM sees a reading outside its expected range.
Symptoms
- Check engine light on
- Poor fuel economy
- Hard starting
Common causes
- Faulty fuel temperature sensor B
- Wiring open or short
- Corroded connector
- Faulty PCM
Diagnostic steps
- Retrieve trouble codes
- Check sensor resistance against spec
- Inspect wiring and connectors
- Replace sensor if out of range
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