GM TPI Wiring

Mass Air Flow harness for modified GM Tuned Port Camaro/Firebird/Corvette 5.0, 5.7 Engines (1985-1992):
Excellent choice if your engine has been modified with a larger cam or higher compression and you are concerned about vacuum. The M.A.F. sensor controls fuel calibration to the engine much better than the speed density system if the engine has been modified. M.A.F. sensors were used on 1985-1989 engines. However, newer modified 1990-1992 engines can be wired this way also using this sensor with the 1985-1989 engine computer.Requires Camaro/Trans Am/Corvette ECM 16198259.

GM Tuned Port Injection Camaro/Firebird/Corvette - 5.0, 5.7 - Engines (1985-1992):
Our harness upgrades the 1985 through 1989 engines by running them on the 1990-92 Camaro or Firebird computer. Using the 1985-89 engine, the computer, prom, and knock sensor will have to be changed to 1990-92 components. This system uses a M.A.P. sensor for fuel calibration instead of a mass air flow sensor. You benefit from an easier installation by not having to install the mass air flow sensor which is encased in a big, hard to route, air intake tube. All necessary computer controlled sensors are utilized as in the original vehicle. The transmission types available were 700R4, 4L60 and the manual transmissions behind the engine. You can also use the turbo 350 and 400 transmissions. The ECM requires a four thousand pulse per mile speed input. Requires 1990-1992 Camaro/Trans Am/Corvette ECM 1227730, Prom and Knock Sensor.

GM 3.1 V-6 Camaro Harness (1990-1992):
We now offer a harness for this potent V-6 found in the Camaro.