Powertrain
generic / SAE
P00A7
Intake Air Temperature Sensor 2 Circuit Low Bank 2
IAT sensor 2 bank 2 signal voltage below expected range — short to ground. 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).
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / A7
Possible causes
- Signal wire shorted to ground high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 40–250 €
- Estimated time: 0.3–1.5 h
- Component: iat sensor 2
- Component: sensor wiring
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012