Multi-Port Retro-Fit EZ-EFI Kit

Retro-Fit Includes: ECU, Wiring Harness, Hand-Held, & Wide-Band O2Sensor


Add Proven, Self Tuning EZ-EFI® To Existing OE or Aftermarket Multi-Port EFI Engines; GM TPI, Ford 5.0L & More

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. 


Related Components Available From FAST

Sensor Kit; GM  (CTS, ATS, MAP, GM TPS)*Idle Air Control Motor – GM TPI*
Sensor Kit; Ford (CTS, ATS, MAP, Ford TPS)*Idle Air Control Motor – GM LT1
Coolant Temp Sensor*Idle Air Control Motor – GM LS1
Air Temp Sensor*Remote IAC Valve Adapter w/ Filter (includes 307014)*
Throttle Position Sensor – Ford*IAC Housing - Adapts Ford to GM (use with 307014)
Throttle Position Sensor – GM TPI*IAC Adapter Harness – Early to Late GM
Throttle Position Sensor – GM LT1/LS1VARIOUS
TPS Adapter Harness – Early to Late GMUSCAR Injector Connector Kit
Manifold Pressure Sensor – GM 1 Bar*Injector Adapter; USCAR-to-Minitimer

 *Directly compatible with the Multi-Port EZ-EFI® wiring harness without adapters, modifications, etc.