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Diagnostic trouble code

P129F

P129F Fault Code

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Car Codes diagnostic trouble code

P129FDiagnostic priority

…R G410, A FALSE SIGNAL MAY BE SENT TO THE ECM RESULTING IN A READING THAT IS OUT OF TOLERANCE. A FALSE SIGNAL MAY RESULT IN ILLUMINATION OF THE MALFUNCTION INDICATOR LAMP AND DTC P129F OR DTC P310B BEING STORED IN FAULT MEMORY. IMPROVED FUEL PRESSURE SENSOR G410 TO AIR AGAINST FUEL INTRUSION. *PE

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Code interpretation

What P129F means

This code indicates Vehicle fault code with verified manufacturer evidence Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.

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Driver experience

Symptoms you may notice

A stored diagnostic trouble code or a related system warning.

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Test, do not guess

Possible causes

The precise cause depends on the reporting module, vehicle specification, circuit condition and software level.

Evidence-led checks

Recommended diagnostic route

Save the complete scan and confirm the code against model-specific technical information before testing.

  1. Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
  2. Prove the basicsTest battery condition, system voltage, power and grounds.
  3. Identify the reporterConfirm the module that logged the code and check circuit integrity.
  4. Compare live dataReview commanded and actual values under the conditions that set the code.
  5. Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
  6. Verify the repairClear the code only after recording evidence, then confirm it does not return.

Vehicle fitment

Vehicle applicability

Audi A3 Sportback, Audi A6 Saloon, Audi A8, Audi Q7, Volkswagen Passat, Volkswagen Touareg, Audi S6 e-tron Sportback, Audi S8, Audi Q5 Sportback, Audi A5 Saloon

Before clearing

Can the code be cleared?

Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.

A DTC is evidence, not a parts order.

Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.

Verified public evidence

Manufacturer and model coverage

77 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.

P129FAudi A3 Sportback
A3 · 2005 · Powertrain

MIL ON (DTC P310B, P129F, P2293, P0087). *NJ

Source
P129FAudi A3 Sportback
A3 · 2006 · Powertrain

MIL ON (DTC P310B, P129F, P2293, P0087). *NJ

Source
P129FAudi A3 Sportback
A3 · 2007 · Powertrain

MIL ON (DTC P310B, P129F, P2293, P0087). *NJ

Source
P129FAudi A3 Sportback
A3 · 2008 · Powertrain

MIL ON (DTC P310B, P129F, P2293, P0087). *NJ

Source
P129FAudi A3 Sportback
A3 · 2006 · Powertrain

MIL ON (DTC P310B AND/OR P129F). *KB UPDATED 5/13/08. *NJ

Source
P129FAudi A3 Sportback
A3 · 2007 · Powertrain

MIL ON (DTC P310B AND/OR P129F). *KB UPDATED 5/13/08. *NJ

Source
P129FAudi A3 Sportback
A3 · 2009 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED INTHE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B (LOW…

Source
P129FAudi A3 Sportback
A3 · 2010 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED INTHE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B (LOW…

Source
P129FAudi A3 Sportback
A3 · 2005 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B…

Source
P129FAudi A3 Sportback
A3 · 2006 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B…

Source
P129FAudi A3 Sportback
A3 · 2007 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B…

Source
P129FAudi A3 Sportback
A3 · 2008 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B…

Source
P129FAudi A5 Saloon
A5 · 2009 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED INTHE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B (LOW…

Source
P129FAudi A5 Saloon
A5 · 2010 · Powertrain

AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED INTHE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B (LOW…

Source
P129FAudi A6 Saloon
A6 · 2005 · Powertrain

MIL ON (DTC P310B AND/OR P129F) AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY. *PE

Source
P129FAudi A6 Saloon
A6 · 2006 · Powertrain

MIL ON (DTC P310B AND/OR P129F) AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY. *PE

Source
P129FAudi A6 Saloon
A6 · 2007 · Powertrain

MIL ON (DTC P310B AND/OR P129F) AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY. *PE

Source
P129FAudi A6 Saloon
A6 · 2008 · Powertrain

MIL ON (DTC P310B AND/OR P129F) AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY. *PE

Source
P129FAudi A6 Saloon
A6 · 2005 · Powertrain

MIL ON (DTC P310B AND/OR P129F). *KB UPDATED 5/13/08. *NJ

Source
P129FAudi A6 Saloon
A6 · 2006 · Powertrain

MIL ON (DTC P310B AND/OR P129F). *KB UPDATED 5/13/08. *NJ

Source