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TuningBot DTC Database · v4.37.15

P1151 Diagnostic Trouble Code (12 interpretations)

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

Chrysler

1 interpretation
P1151
Fuel Rail Pressure Malfunction Maximum Positive Deviation Chrysler · fuel Data confidence 62%

The control module detected that the actual Fuel Rail Pressure Malfunction Maximum value stayed above the specified value (positive control deviation). This is the manufacturer-specific definition used by Chrysler.

Dodge

1 interpretation
P1151
Fuel Rail Pressure Malfunction Maximum Positive Deviation Dodge · fuel Data confidence 62%

The control module detected that the actual Fuel Rail Pressure Malfunction Maximum value stayed above the specified value (positive control deviation). This is the manufacturer-specific definition used by Dodge.

Ford

1 interpretation
P1151
Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2 Ford · emissions Data confidence 80%

The control module detected a fault associated with the Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.

Possible causes

  • Wiring
  • intake/fuel system
  • HO2S
  • EGR system
  • oil level
  • camshaft timing

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

Jeep

1 interpretation
P1151
Fuel Rail Pressure Malfunction Maximum Positive Deviation Jeep · fuel Data confidence 62%

The control module detected that the actual Fuel Rail Pressure Malfunction Maximum value stayed above the specified value (positive control deviation). This is the manufacturer-specific definition used by Jeep.

Kia

1 interpretation
P1151
Accelerator pedal position (APP) sensor - circuit malfunction Kia · engine Data confidence 62%

The control module detected improper operation of the Accelerator pedal position (APP) circuit. This is the manufacturer-specific definition used by Kia.

Possible causes

  • Wiring
  • APP sensor
  • ECM

Land Rover

1 interpretation
P1151
Heated oxygen sensor (HO2S), upstream, bank 2 - mixture too lean Land Rover · emissions Data confidence 62%

The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (Heated oxygen sensor (HO2S), upstream, bank 2 - mixture). This is the manufacturer-specific definition used by Land Rover.

Possible causes

  • Intake leak
  • fuel pressure low
  • injector(s) blocked
  • HO2S
  • ECM

MINI

1 interpretation
P1151
O2 Sensor Heater Circuit Signal Intermittent Bank 2 Sensor 1 MINI · emissions Data confidence 62%

The control module detected a fault associated with the O2 Sensor Heater Circuit Signal Intermittent Bank 2 Sensor 1 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.

PSA

1 interpretation
P1151
Motorised throttle control : Short circuit to positive PSA · engine Data confidence 72%

The control module detected a short circuit to battery voltage in the Motorised throttle control circuit. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Magneti Marelli MM6KP engine ECU (EW7A/EW10A)

Suzuki

1 interpretation
P1151
Heated oxygen sensor (HO2S) 1, bank 2 - output voltage high Suzuki · emissions Data confidence 62%

The control module detected that the Heated oxygen sensor (HO2S) 1, bank 2 - output voltage stayed above the expected range. This is the manufacturer-specific definition used by Suzuki.

Possible causes

  • Wiring short to positive
  • HO2S
  • ECM

VAG

2 interpretations
P1151
Long term fuel trim 1, Bank 1 - below lean limit VAG · fuel Data confidence 62%

The control module detected a fault associated with the Long term fuel trim 1, Bank 1 - below lean limit circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Fuel pressure/pump
  • injectors
  • intake/exhaust leak
  • HO2S
Applies to Audi
P1151
Long Term Fuel Trim Additive Air; Bank 1; Range 1: System too Lean VAG · fuel Data confidence 84%

The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (Long Term Fuel Trim Additive Air; Bank 1; Range 1: System). This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17559. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

Malfunction Indicator Lamp (MIL) active

Possible causes

  • Intake System faulty/leaking
  • Fuel Pressure, Fuel Pressure Regulator and Fuel Pump faulty
  • Fuel Injectors faulty/leaking
  • Exhaust System faulty/leaking
  • Activated-Charcoal Filter/System faulty/leaking
  • Secondary Air Injection System faulty/leaking

Recommended checks

  • Check Intake System for Leaks
  • Check Fuel Pressure, Fuel Pressure Regulator and Fuel Pump
  • Check Fuel Injectors
  • Check Exhaust System for Leaks
  • Check Activated-Charcoal Filter/System
Applies to Volkswagen

Volvo

1 interpretation
P1151
Heated oxygen sensor (HO2S) 1, bank 2 - signal malfunction Volvo · emissions Data confidence 62%

The control module detected improper operation of the Heated oxygen sensor (HO2S) 1, bank 2. This is the manufacturer-specific definition used by Volvo.

Possible causes

  • Wiring
  • HO2S
  • ECM

Related and nearby codes

How to read P1151

P

Powertrain: engine, transmission and driveline systems.

1

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

151

Specific fault index within the subsystem.

Frequently asked questions about P1151

What does P1151 mean?

Diagnostic Trouble Code (12 interpretations). The control module detected that the actual Fuel Rail Pressure Malfunction Maximum value stayed above the specified value (positive control deviation). This is the manufacturer-specific definition used by Chrysler.

Is P1151 generic or manufacturer-specific?

P1151 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Ford, Jeep, Kia, Land Rover, MINI, PSA, Suzuki, VAG, Volvo. The same number can mean something different on other brands.

Can TuningBot remove P1151 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 tuningDyno-tested results by model and engine See the results →

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