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General Engine Management / Tuning Forum Discuss general EMS tuning concepts that do not pertain to a specfic brand or product.

Greddy Profec II problems

Old Dec 4, 2005 | 04:07 PM
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turbov6camaro's Avatar
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From: FWB FL
Greddy Profec II problems

hello

I dont have the car you guys have but i am using this boost controler......

with in the last week it would hold 13.8 psi perfect with only the start boost set, it would not spike or fall off....

well all of a sudden i will sometime's only get my WG spring rating ~10.8PSI with a tial 38mm gate

on the dyno one time i hit 16 psi with 15% and 6psi start boost..... then the very next pull with NO change i only hit 10 psi



is the vavle bad?

anything to check or help me find find the problem?

THANKS in advance
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