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TuningBot DTC Database · v4.37.15

P1400 Chevrolet - Cold start emission control - malfunction

Manufacturer-specific interpretation for Chevrolet. All interpretations of P1400

P · PowertrainEngineOBD2

What P1400 means

P1400
Cold start emission control - malfunction Chevrolet · engine Data confidence 62%

The control module detected improper operation of the Cold start emission control. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Intake/exhaust leak/blockage
  • mechanical fault
  • idlespeed control (ISC) system
  • ignition control
  • engine coolant temperature (ECT) sensor
  • HO2S

Related and nearby codes

How to read P1400

P

Powertrain: engine, transmission and driveline systems.

1

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

400

Specific fault index within the subsystem.

Frequently asked questions about P1400

What does P1400 mean?

Cold start emission control - malfunction. The control module detected improper operation of the Cold start emission control. This is the manufacturer-specific definition used by Chevrolet.

Is P1400 generic or manufacturer-specific?

P1400 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 P1400 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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