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Thierry25 Thierry25 is offline
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Join Date: Feb 2009
Location: FRANCE (Besanšon)
Posts: 310
Originally Posted by Ben V View Post
I have checked through the hoses and connections and as far as I can see it all seems OK.
I have changed the fuel filter, also removed 2 of the accessable injectors which seem pretty clean, I sprayed carb cleaner through them first backwards holding the injector open and then secondly the correct way and the pattern doesn't look too bad either.

Another curious thing is another sympton has developed, the engine runs on for a second or so after keyed off?
If your car run correctly at iddle and off boost rpm, it means that your injectors are not involved in your problem.

As said by Keith, you should verify your fuel system pressure ( min 6.6 bar) and fuel system flow rate ( 1.5 liter per 15 second). Thus, if correct, it will means that your fuels pumps, fuel filter and accumulator are correct !

Then, in the mean time, you should verify your WUR controle pressure in warm ( about 4.5 bar) . Then you have to trigger the WUR with 0.75 bar signal and verify that your your controle pressure drop to 2.9 bar ( about).

I still believe that you have somewhere a problem with a vaccum/boost signal which could false the pressure information which is given to the WUR and to the EZ69
965 C2T / 1991 3.3 TURBO
Old 11-03-2009, 11:23 AM
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