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The EZ-EFI™ Multiport Retro-Fit kit is offered to bring all the benefits of FAST’s™ award winning EZ-EFI™ system to existing factory or aftermarket equipped multi-port fuel injected engine – including GM’s TPI engines, Fords 5.0L engines, and others. The kit includes: Self tuning ECU The wiring harness is completely pre-wired and labeled for a simple installation. It includes connectors for early style GM sensors (coolant temp, air temp, TPS, MAP and IAC) such as those found on a GM Tuned Port engine. All of these sensors are available from FAST™ individually or in kit form. FAST™ also offers a Ford style TPS that is directly compatible with the harness. Or the harness can be modified to accept any 0-5V TPS. The rest of the sensors need to be GM style parts. Wiring adapters are available from FAST™ to accommodate a later style GM TPS (round, 3 pin connector) or IAC (in-line, 4 pin connector). Also available are a remote mounted IAC kit and an adapter for installing an early GM IAC on a Ford throttle body. The harness is wired for eight traditional “Minitimer” style injectors. Injector adapters or connector kits are available from FAST™ to adapt the harness to newer “USCAR” style injectors. The EZ-EFI™ system must be used with high impedance injectors. A wide range of high impedance injectors are available from FAST™. The EZ-EFI™ system must be used with a vacuum referenced fuel pressure regulator. Returnless fuel systems can not be used. FAST™ offers an adjustable regulator that is ideally suited for use with EZ-EFI™. Various fuel system kits are also available. One in particular was designed specifically for the original EZ-EFI™ throttle body system. It includes, among other things, the FAST™ fuel pressure regulator, a fuel pump and a fuel pressure gauge. Also included is a fuel pump relay harness that is plug-n-play with the Multi-Port EZ-EFI™ wiring harness. Related parts available from FAST™: 307003*
Coolant Temp Sensor 307005*
Throttle Position Sensor – Ford 307007* Manifold pressure sensor – GM 1 Bar 307014* Idle
Air Control Motor – GM TPI 307030 30-70 PSI Adjustable Fuel Pressure Regulator 307503 EZ-EFI™ Fuel System Kit * These sensors are directly compatible with the Multi-Port EZ-EFI™ wiring harness without adapters, modifications, etc.
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