1989 Chevy Tbi Wiring Diagram

A1 grn wht this wire is used to energize the fuel pump relay.

1989 chevy tbi wiring diagram. Tbi wiring harness conversion. Do not sell my personal information. As you can see from the above diagrams compared to a carburetor the tbi is much. Access our free throttle body injection tbi repair guide for chevrolet full size cars 1979 1989 through autozone rewards.

Typically technical support is limited to the customer with only a harness purchase due to the complexity of variables we have no control over. Page 1 1989 wiring diagrams r v p truck models when reference is made in this manual to a brand name number or specific tool an equivalent product may be used in place of the recommended item all information illustrations and specifications contained in this manual are based on the latest product information available at the time of publication approval. 1989 wiring diagrams r v p truck models when reference is made in this manual to a brand name number or specific tool an equivalent product may be used in place of the recommended item all information illustrations and specifications contained in this manual are based on the latest product. 3 4 ton pickup 2wd l6 250 4 1l vin d 2 bbl 1982 3 4 ton pickup 2wd v8 454 7 4l vin w 4 bbl 1983.

Vacuum line hose diagram for a 1989 chevy 350 engine with tbi. A2 not used a3 not used a4 gry to egr relay optional this is a ground from the ecm to control the egr relay. 1228747 truck 1989 90 5 7l vin k lu5. Find chevrolet 57l350 hose line tubing and get free shipping on orders over 99 at summit racing.

Print below is a listing of vacuum diagrams for most of the engine and emissions package combinations covered by this guide. This is a basic tbi harness for all engines using ecm 1227747 and 1228746 type ecm many others can be used. 1989 90 5 7l v8 vin 7 lo5. Basic connections are standard but it is easy to customize one for your needs.

1 for access to the idle stop screw pierce the cap with an awl and carefully pry the cap from the side of the throttle body. Here s a list of the pins but they are also on the wiring diagrams above. They also use a tps mat cts and have a idle air control system. 1989 v8 350 5 7l vin k tbi 1995 v8 6 5l dsl turbo vin s 1997 c 20.

All chevrolet tbi s use a speed density fuel calibration using a map sensor much like the speed density tuned ports. Consult a service manual or see below for any check engine light code definitions. If you have access to a scan tool use a hook up for a 1990 350 cu. For a gm tbi application to read the data or to check for stored codes.