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Registered Member
Join Date: Feb 1999
Location: Utica, Michigan
Posts: 2,631
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![]() FMU stands for fuel management unit. It is used on boosted applications such as a supercharger or turbo. It raises fuel pressure based on manifold pressure.
Boost goes up, fuel pressure goes up adding the required extra fuel.
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1988 Mustang GT stock bottom 302, C4 10.9 @ 128 with 8 psi of Novi 1000 boost!----STOLEN 1989 Mustang notchback Warmed up 306 with a Procharger. |
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