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Old 12-02-2012, 01:09 PM
new760Liowner new760Liowner is offline
Officially Welcomed to the 'Fest
Location: Nor Cal
 
Join Date: Aug 2012
Posts: 108
Mein Auto: E66 760, E38 750, E34 540
Have you scanned the car yourself with INPA? I'm sure the dealers are looking out for your best interest , but if it were me, I'd like to see the errors myself.

Also, if the 400-450 psi value is correct, the HPFPs are partially working as the level is higher than supplied by the fuel pump in the fuel tank. Unfortunately, if the pressure in the fuel line doesn't exceed the pressure in the combustion chamber, the fuel won't get through the injector. Like you said, I think the problem lies with the output level of the HPFPs.

How did you come by the 400-450 psi readout on the fuel rail? Is there a hidden menu that
displays that? If so, maybe some of us with 760s can report back with our values.

Also, did the carbon cleaning service providers take any pictures or tell you of the condition of your intake valves prior to cleaning?
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