Gm Tbi Swap Wiring Diagram

Painless wiring makes the conversion from carburetor to tbi real easy with there fuel injection wiring harness and a parts list of everything you need to make the switch.

Gm tbi swap wiring diagram. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. I ended up with a complete system from a 91 305 camaro for about 140. Tbi wiring harness conversion. We also have a device that will allow you to delete the vss circuit.

This is a basic tbi harness for all engines using ecm 1227747 and 1228746 type ecm many others can be used. I jumped on ebay and starting bidding. There will be a lot of extra things don t worry about them now grab it all as whole as you can. 1992 95 tbi wire harnesses.

It turned out that people are putting gm tbi units everything from jeeps to land cruisers. These engine wiring harnesses are designed to make your engine transplant effortless. Take the fear out of electronic fuel injection. The wire harness above is for the application years 1986 91 pre 4l60e.

Typically technical support is limited to the customer with only a harness purchase due to the complexity of variables we have no control over. Complete with the wiring for emissions and vss. All un needed emissions. One of the most popular efi conversions to older chevy engines or any engine for that matter is the gm tbi system using the 1227747 ecm.

Tbi fuel injection conversion using a gm tbi efi system. The beauty of the tbi systems used on the small block chevy and the 4 3 v6 is that the systems all work basically the same and gm has kept the wiring the same so there no real need to have the exact wiring diagram for the system you are installing. Basic connections are standard but it is easy to customize one for your needs. First you need to go to junk yard and pull the engine efi harness or complete system if you can.

The computer still thinks its receiving the correct pulse.