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TuningBot DTC Database · v4.37.15

P1111 Chevrolet - Intake air temperature (IAT) sensor - voltage high, intermittent

Manufacturer-specific interpretation for Chevrolet. All interpretations of P1111

P · PowertrainEngineOBD2

What P1111 means

P1111
Intake air temperature (IAT) sensor - voltage high, intermittent Chevrolet · engine Data confidence 80%

The control module detected that the Intake air temperature (IAT) voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Wiring open circuit/short to positive
  • poorconnections

Related and nearby codes

How to read P1111

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

111

Specific fault index within the subsystem.

Frequently asked questions about P1111

What does P1111 mean?

Intake air temperature (IAT) sensor - voltage high, intermittent. The control module detected that the Intake air temperature (IAT) voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.

Is P1111 generic or manufacturer-specific?

P1111 is a manufacturer-specific code. In this database it is documented for: Chevrolet. The same number can mean something different on other brands.

Can TuningBot remove P1111 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Chevrolet engines See the results →

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