Quote Originally Posted by Bultano View Post
Hi,

The N75 valve was just tested and was apparently fully functional, the boost sensor was changed, no boost leaks and it doesn’t boost without the map until 3.5k revs is that normal?? With the map there is no boost whatsoever, the map apparently is a dyno tested plug and play one from online so it COULD be the issue but what else can I test?
I don't know how it would act without a map sensor. What map sensor you install? Aftermarket?? Ya didn't mention who tuned it..are you able to flash back to stick, to see if the issue is hardware related, or software related? Do you have a boost gauge, to see if your getting low boost, or no boost? And do ya have something to log with? Vcds, Obdeleven pro, etc.

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