1989 Chevy Tbi Wiring Diagram

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 chevy tbi wiring diagram. For a gm tbi application to read the data or to check for stored codes. Vacuum line hose diagram for a 1989 chevy 350 engine with tbi. 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. They also use a tps mat cts and have a idle air control system.

This is a basic tbi harness for all engines using ecm 1227747 and 1228746 type ecm many others can be used. Tbi wiring harness conversion. A1 grn wht this wire is used to energize the fuel pump relay. Consult a service manual or see below for any check engine light code definitions.

Do not sell my personal information. A2 not used a3 not used a4 gry to egr relay optional this is a ground from the ecm to control the egr relay. 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. 1989 90 5 7l v8 vin 7 lo5.

As you can see from the above diagrams compared to a carburetor the tbi is much. Print below is a listing of vacuum diagrams for most of the engine and emissions package combinations covered by this guide. Typically technical support is limited to the customer with only a harness purchase due to the complexity of variables we have no control over. Here s a list of the pins but they are also on the wiring diagrams above.

All chevrolet tbi s use a speed density fuel calibration using a map sensor much like the speed density tuned ports. 90 350 tbi vacuum lines. Find chevrolet 57l350 hose line tubing and get free shipping on orders over 99 at summit racing. You can use a late 80 s or early 90 s gm tbi definition.

Access our free throttle body injection tbi repair guide for chevrolet full size cars 1979 1989 through autozone rewards. 1989 v8 350 5 7l vin k tbi 1995 v8 6 5l dsl turbo vin s 1997 c 20. 1228747 truck 1989 90 5 7l vin k lu5. If you have access to a scan tool use a hook up for a 1990 350 cu.