1987 Chevy Tbi Wiring Diagram
Typically technical support is limited to the customer with only a harness purchase due to the complexity of variables we have no control over.
1987 chevy tbi wiring diagram. 1988 was the last year of carburetors on gm s passenger cars. Here are the complete wiring harness schematics for the 73 87 series pickups. S tbi no fuel spray from injector answered by a verified gm mechanic. 73 76 diagrams 73 76 cab interior 73 76 chassis rear lighting chassis cab and stepside 73 76 chassis rear lighting fleetside and suburban 73 76 engine and front lighting.
This is a basic tbi harness for all engines using ecm 1227747 and 1228746 type ecm many others can be used. Basic connections are standard but it is easy to customize one for your needs. Tbi wiring harness conversion. These are huge jpgs so you may want to save them to your hard drive and print the pages you need.
A2 not used a3 not used a4 gry to egr relay optional this is a ground from the ecm to control the egr relay. A1 grn wht this wire is used to energize the fuel pump relay. The wiring diagrams use an alpha numerical grid and an address for each wire entering the harness to show where it comes out. The wiring diagrams in this manual use a format which reduces the number of lines on a schematic by showing each wire connection at the terminals and components but only one wire for the wiring harness.
15 11 2018 15 11 2018 2 comments on 1987 chevy s10 2 8 tbi wiring diagram. The diagram is surrounded by a alpha numeric loaction grid. All the wires at the connectors have alpha numeric addresses showing where the other end of the wire is located ac cording to the grid. 1987 chevy s10 2 8 tbi wiring diagram.
Although just a small number of cars were equipped with tbi in 1987 this changed very rapidly in 1988 when it was introduced on the f bodies camaro and firebird and expanded to include the chevrolet caprice monte carlo and the truck lines as well. The connectors are shown with end on views with.