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FMU Problem

   
Old 04-21-2013, 03:05 PM
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Finlandvette
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Default FMU Problem
I have procharger FMU,it suddenly stopped increasing fuel pressure.

Where should I start looking for the problem?


Sami from Finland
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Old 04-21-2013, 05:46 PM
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PAINTER MAN
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First I would check the vacuum line running to the unit. If not that I would check the diaphragm inside the FMU.
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Old 05-12-2013, 04:08 PM
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Now I got a new procharger FMU and the problem seems to be that the fuel pressures does not go higher. FMU works after the boost pressure is about 5 psi.
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