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TuningBot DTC Database · v4.37.15

P1088 VAG - Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich Limit Not Reached

Manufacturer-specific interpretation for VAG. All interpretations of P1088

P · PowertrainFuelOBD2

What P1088 means

P1088
Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich Limit Not Reached VAG · fuel Data confidence 62%

The control module determined that the Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich adaptation reached its permissible limit. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring
  • intake leak
  • HO2S
Applies to Audi
P1088
Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich Limit Not Reached VAG · fuel Data confidence 62%

The control module determined that the Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich adaptation reached its permissible limit. This is the manufacturer-specific definition used by Volkswagen.

Applies to Volkswagen

Related and nearby codes

How to read P1088

P

Powertrain: engine, transmission and driveline systems.

1

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

088

Specific fault index within the subsystem.

Frequently asked questions about P1088

What does P1088 mean?

Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich Limit Not Reached. The control module determined that the Exhaust Bank 4 - Mixture Adaption Range 2 Lower Rich adaptation reached its permissible limit. This is the manufacturer-specific definition used by Audi.

Is P1088 generic or manufacturer-specific?

P1088 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.

Can TuningBot remove P1088 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 VAG engines See the results →

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