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TuningBot DTC Database · v4.37.15

P1172 Diagnostic Trouble Code (11 interpretations)

11 manufacturer-specific interpretations across 11 manufacturers in the TuningBot DTC database.

Alfa Romeo

1 interpretation
P1172
Long term fuel trim - at idle Alfa Romeo · fuel Data confidence 62%

The control module detected a fault associated with the Long term fuel trim - at idle circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Alfa Romeo.

BMW

1 interpretation
P1172
Crankshaft position (CKP) sensor - timing plausibility BMW · engine Data confidence 62%

The control module detected that related sensor signals for Crankshaft position (CKP) sensor - timing did not agree with each other (correlation/plausibility fault). This is the manufacturer-specific definition used by BMW.

Possible causes

  • CKP sensor
  • reluctor

Chevrolet

1 interpretation
P1172
Fuel level sensors, primary & secondary sensor no fuel level change during fuel transfer from secondary to primary tank Chevrolet · fuel Data confidence 62%

The control module detected a fault associated with the Fuel level sensors, primary & secondary sensor no fuel level change during fuel transfer from secondary to primary tank circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.

Possible causes

  • Wiring
  • fuel pump relays
  • secondary fuel pump
  • fuel level sensors
  • ECM

Ford

1 interpretation
P1172
Rotor Control Fault Ford · engine Data confidence 80%

The control module registered the fault condition described as "Rotor Control Fault". This is the manufacturer-specific definition used by Ford.

Honda

1 interpretation
P1172
Heated oxygen sensor (HO2S) 1, bank 1 - out of range, high Honda · emissions Data confidence 62%

The control module detected that the Heated oxygen sensor (HO2S) 1, bank 1 value was outside the valid range. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Wiring
  • HO2S

Kia

1 interpretation
P1172
Electronic throttle system (ETS), throttle motor - circuit malfunction Kia · engine Data confidence 62%

The control module detected improper operation of the Electronic throttle system (ETS), throttle motor circuit. This is the manufacturer-specific definition used by Kia.

Possible causes

  • Wiring
  • throttle motor

Land Rover

1 interpretation
P1172
System too rich, bank 1 & 2 Land Rover · fuel Data confidence 62%

The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (System). This is the manufacturer-specific definition used by Land Rover.

Possible causes

  • Intake/fuel system
  • injectors
  • H025
  • MAF/VAF sensor
  • ECT sensor

MINI

1 interpretation
P1172
Ambient Pressure Sensor Rationality Check MINI · engine Data confidence 62%

The control module detected a fault associated with the Ambient Pressure Sensor Rationality Check circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.

Suzuki

1 interpretation
P1172
Lambda Controller Limit Malfunction Bank 1 Too Lean Suzuki · emissions Data confidence 62%

The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (Lambda Controller Limit Malfunction Bank 1). This is the manufacturer-specific definition used by Suzuki.

VAG

1 interpretation
P1172
Throttle motor position sensor 2 - low input VAG · engine Data confidence 62%

The control module detected that the Throttle motor position sensor 2 signal stayed below the expected range. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring short to ground
  • throttle motor position sensor
Applies to Audi

Volvo

1 interpretation
P1172
System too rich, bank 1 - part load Volvo · fuel Data confidence 62%

The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (System). This is the manufacturer-specific definition used by Volvo.

Possible causes

  • Intake blocked
  • EVAP canister purge valve
  • fuel pressure high
  • EGR system
  • injector(s)
  • HO2S

Related and nearby codes

How to read P1172

P

Powertrain: engine, transmission and driveline systems.

1

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

172

Specific fault index within the subsystem.

Frequently asked questions about P1172

What does P1172 mean?

Diagnostic Trouble Code (11 interpretations). The control module detected a fault associated with the Long term fuel trim - at idle circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Alfa Romeo.

Is P1172 generic or manufacturer-specific?

P1172 is a manufacturer-specific code. In this database it is documented for: Alfa Romeo, BMW, Chevrolet, Ford, Honda, Kia, Land Rover, MINI, Suzuki, VAG, Volvo. The same number can mean something different on other brands.

Can TuningBot remove P1172 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

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