From our Call Centre, we have been able to confirm the repetition of several faults in the Audi TT, where a code relating to the fuel pressure has been recorded.
• 08852 – P2294 – Fuel pressure regulating valve (N276). Interruption.
• 18726 – P2294 – Fuel pressure regulating valve (N276). Interruption.
In this case, the displayed fault code reading from the engine control unit will be fault code P2294 but, depending on the diagnostic tool used, it is possible that a decimal code will be recorded that may match the two options we give.
The Malfunction Indicator Light (MIL) is on due to a fault in the fuel circuit and there is a considerable lack of power.
The cause of this fault is a failure of the power supply of the fuel pressure regulating valve (N276), which comes from the engine component relay (J757).
To properly repair this fault, take the following steps:
- Check the electrical connection of the fuel pressure regulating valve and its power supply.
Thanks to our dis-net tool, we can access the engine diagram, the location and the monitoring of values of the fuel pressure regulating valve as shown in the image.
The checks on the electrical connection of the regulating valve are correct, but it has no power supply. So now the condition of the wiring must be inspected and the engine component relay (J757) contacts.
After the appropriate checks, we can confirm that the fault originates in the engine component relay (J757). The relay must be replaced for a new one with reference 1K0 951 253A.