Powertrain
generic / SAE
P00CE
Intake Air Temperature Measurement System - Multiple Sensor Correlation Bank 1
Multiple intake air temperature sensors on bank 1 disagree beyond plausible limits. 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– / CE
Possible causes
- One sensor drifted high
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 40–250 €
- Estimated time: 0.3–1.5 h
- Component: iat sensor 1
- Component: iat sensor 2
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012