2004 1.6 FSI (BAG) - failure in fuelpressure - goes into limpmode - what to try now ?

   #1  

trsdk8960

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Hello

I have a 2004 Touran 1.6 FSI (BAG 115hp)..... it drives me crazy

When Cold everything is okay, but after 15-20 minutes (when warmed up), it sets a failure and drops the power drastically...

Failure log says: 16575 - signal from high-pressure fuel sensor G247 unrealistic...

In the measure Blocks I can see that the low fuelpresure always is around 5 bars - thats okay.
The high fuelpressure is normally around 60-100 bars, but when the failure occures, the pressure is dropped to 49 bars (both specified and measured).

I have changed the fuelpump in the fueltank, and the filter + the two fuel pressure sensors (low and high), and the temp-sensor just before the throttle.


Which parts can cause this failure ??
Any inputs of Things to log, and check when the failure kicks in ??


Kind regards
Tommy
 
   #3  

trsdk8960

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Okay, here's the autoscan....
The problem is that it goes into limp mode (fuel pressure is reduced to 49.9bar specified).... but why ?


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