Fuel / Air MeteringModerate ImpactPetrol

P0140 — Diagnostic Trouble Code P0140

OBD-II diagnostic code P0140 relates to the fuel / air metering system. This code is logged when the ECU detects a parameter outside its expected operating range.

7+

Affected Brands

12+

ECU Platforms

2

Related Services

7

Related DTCs

Symptoms

What the driver typically experiences when P0140 is stored

!Check Engine Light
iRough running or hesitation
iAltered fuel mixture

Why does P0140 appear after tuning?

This code may appear after ECU modifications when the affected system monitoring has not been fully recalibrated for the new operating parameters.

How proper calibration can address P0140

WEREMAP professional calibrations include comprehensive diagnostic management for all affected systems, preventing unnecessary fault codes while maintaining safe operation.

Related Tuning Services

Relevant services for the system behind P0140

Catalyst OffDTC Off

Related Diagnostic Codes

Codes from the same diagnostic system as P0140

P0141Low Impact

O2 Sensor Heater Circuit (Bank 1 Sensor 2)

P0138Moderate Impact

Diagnostic Trouble Code P0138

P0036Low Impact

HO2S Heater Control Circuit (Bank 1 Sensor 2)

P0420Moderate Impact

Catalyst System Efficiency Below Threshold (Bank 1)

P0160Moderate Impact

Diagnostic Trouble Code P0160

P0038Moderate Impact

Diagnostic Trouble Code P0038

P0139Moderate Impact

Diagnostic Trouble Code P0139

Affected ECU Platforms

Bosch MED17.4.2Siemens/Continental GPEC2ABosch MED17.7.7Siemens/Continental SIM2K-260Denso SHASiemens/Continental SIMOS16.21Delco E83Bosch MED17.5.2Denso VEABosch A2709002100Siemens/Continental SIMOS18Siemens/Continental SIMOS10.2x

Commonly Affected Vehicles

DodgeChargerSiemens/Continental GPEC2A
KiaStingerSiemens/Continental SIM2K-260
VolvoXC 90Denso SHA
AudiQ7Siemens/Continental SIMOS16.21
OpelCorsaDelco E83
Peugeot308Bosch MED17.4.2
VWPoloBosch MED17.5.2
VolvoXC90Denso VEA

Based on data from 7+ vehicle brands. P0140 is not limited to these models.

Frequently Asked Questions

What does P0140 mean?â–¼
OBD-II diagnostic code P0140 relates to the fuel / air metering system. This code is logged when the ECU detects a parameter outside its expected operating range.
Why does P0140 appear after ECU tuning?â–¼
This code may appear after ECU modifications when the affected system monitoring has not been fully recalibrated for the new operating parameters.
How do you prevent P0140 during remapping?â–¼
WEREMAP professional calibrations include comprehensive diagnostic management for all affected systems, preventing unnecessary fault codes while maintaining safe operation.
Which vehicles are affected by P0140?â–¼
P0140 is commonly found on Dodge, Kia, Volvo, Audi, Opel, Peugeot vehicles equipped with Bosch MED17.4.2, Siemens/Continental GPEC2A, Bosch MED17.7.7, Siemens/Continental SIM2K-260 ECU platforms.
What other codes appear alongside P0140?â–¼
P0140 frequently appears together with P0141, P0138, P0036, P0420, P0160. These related codes typically originate from the same system modification and should be addressed together in the calibration.

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