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 GM TBI Fuel Injection Harnesses

GM Blazer/Jimmy Central Port (Vortech) Injection 4.3 V-6: The Vortech V-6 engine utilizes a single injector assembly which consists of a fuel meter body, fuel pressure regulator, fuel injector and six poppet nozzles with fuel tubs. The plenum (manifold) is a variable tuned design that splits the plenum in two during low and high RPM'S, which provides peak torque along with increased horse power. The transmission types available for this engine are 4L60, 4L60-E, and manual transmissions. The 1992 engines can use the turbo 350 & 400 transmissions.

GM Truck Throttle Body Injection 4.3, 5.0, 5.7, 7.4 Engines 1985-91 (w/o the 4L60E or 4L80-E transmissions): Our harness upgrades to the 1988-90 CK truck computer. Two fuel injectors mounted on top of the throttle body inject fuel into the motor. GM uses most of the same sensors on a throttle body as they do a tuned port engine. Throttle body injection uses a M.A.P. sensor for fuel calibration. This computer controls the engine only, an electric shift transmission which GM started using in 1991 cannot be used with this computer. The transmission types available were 70OR4, Turbo-400, Turbo 350 and manual transmissions.

GM Truck Throttle Body Injection 4.3, 5.0, 5.7, 7.4 Engines 1991-1995 (using the 4L60-E or 4L80-E Automatic Transmissions): GM added a computer command automatic transmission to the truck engines first and later years to their passenger cars. While the engines look the same and use most of the same sensors as the 1985-1990 engines, the older ECM's do not have the capability to control the electronic transmission. The Detail Zone incorporates the wiring necessary for the electronic transmissions. The CK truck ECM will be used in this application. The transmission types available were 4L60-E, 4L80-E and manual transmissions.

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Description Part #
GM TBI 1985-1990 4.3 - 5.0 - 5.7 - 7.4  Chevy - GMC Truck Harness TH-60 Add to my cart!
GM TBI 1991-1994 4.3 - 5.0 - 5.7 - 7.4 Chevy - GMC Truck Harness with 4L60E TH-70 Add to my cart!
GM TBI 1991-1994 4.3 - 5.0 - 5.7 - 7.4 Chevy - GMC Truck Harness with 4L80E TH-80 Add to my cart!
GM TBI 1995 4.3 - 5.0 - 5.7 - 7.4 Chevy - GMC Truck Harness with 4L60E or 4L80E TH-90 Add to my cart!
GM Vortec 1996-UP 4.3 - 5.0 - 5.7 - 7.4 Chevy - GMC Truck Harness with 4L60E or 4L80E TH-100 Add to my cart!
GM Vortec CPI 1992 4.3 Blazer / Jimmy Harness PI-92 Add to my cart!
GM Vortec CPI 1993-1995 4.3 Blazer / Jimmy Harness PI-94 Add to my cart!
GM Vortec CPI 1996-UP 4.3 Blazer / Jimmy Harness PI-97 Add to my cart!
   

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