Code Definition

P1354 — Fuel quality adjuster position sensor fault

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Audi

About P1354

P1354 is a manufacturer-specific powertrain diagnostic trouble code recorded for Audi vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1354 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1354 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

On Audi and Volkswagen diesel engines with an electronically controlled distributor injection pump, the fuel metering element, commonly called the quantity adjuster, is moved by a solenoid and its actual position is reported back to the Engine Control Module by a position sensor built into the pump. That sensor is normally an inductive or half differential short circuit ring type device, energised by the module and returning a signal proportional to the position of the adjuster shaft, and it is what allows the module to close the loop on delivered fuel quantity rather than simply commanding a ...

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