o.k. i have the the drag gen3 kit with the vortec fmu. i am having problems with the fuel leaning out. it just started doing it. the turbo sounds like it it is spooling up and i can hear the blow off valve, but it never reads positive boost. i can stomp it to the floor, and it stays rich until it gets to 3500rpms(about when it would start boosting) and then the a/f goes in the red. it sounds like it is making positive boost, but it is not. it only leans out at wot. but it never makes boost. could my fmu be screwed up? i don't have a stopped up vacuum line, because the boost guage will go up to zero, but not past. i don't have egt or fuel pressure gauges. please help

 

anything would be helpful

 

Try in the F/I forum... sorry, I know naught about turbos...

 

did you hook up the FMU right?
alot of people install it wrong and when you boost the FMU then PUSHES fuel back into the line, not into the engine.
but if your not feeling boost you have another problem also.


[Modified by KAMiN, 11:51 PM 10/29/2002]

 

yes, it was working right