OBD-II code · Powertrain (generic)
P00A8 Intake Air Temperature Sensor 2 Circuit High Bank 2
IAT sensor 2 bank 2 signal voltage above expected range — open circuit or short to power. The intake air temperature sensor feeds the ECM's density calculation — a drifted reading miscalculates fuel mass and pushes mixture lean (cold reading) or rich (hot reading).
Is it safe to drive with P00A8?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire open
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Iat Sensor 2, Sensor Wiring
Related codes
- P0098Intake Air Temperature Sensor 2 Circuit High Bank 1
- P00ADIntake Air Temperature Sensor 1 Circuit High Bank 2
- P00EBIntake Air Temperature Sensor 3 Circuit High Bank 1
- P00F0Intake Air Temperature Sensor 3 Circuit High Bank 2
- P00A5Intake Air Temperature Sensor 2 Circuit Bank 2
- P00A6Intake Air Temperature Sensor 2 Circuit Range/Performance Bank 2
- P00A7Intake Air Temperature Sensor 2 Circuit Low Bank 2
- P00A9Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Bank 2
- P00AAIntake Air Temperature Sensor 1 Circuit Bank 2
- P00ABIntake Air Temperature Sensor 1 Circuit Range/Performance Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.