Code result
P011C
Charge Air Cooler Temperature/Intake Air Temperature Correlation Bank 1
Moderate severity
What it means
CAC temperature and IAT on bank 1 disagree at long soak. 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?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
One sensor drifted
highOne of the most commonly reported causes for this code — check this first.
Related help
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