The diagram is surrounded by a alphanumeric loaction grid. There are 2 87 output terminals on the spst 5 terminal relay so you can use both.
Tbi Wiring Harness
87 chevy tbi wiring diagram. Main index forum index trucks vans suv 1973 1987 fullsize trucks vans 1973 1991 blazers suburbans dual tank 87 tbi how to wire pumps fusionbb version 21 2003 2006 interactivephp inc. A1 grnwht this wire is used to energize the fuel pump relay. If you have access to a scan tool use a hook up for a 1990 350 cu. The connectors are shown with end on views with. Starting from 26500. Heres a list of the pins but they are also on the wiring diagrams above.
Consult a service manual or see below for any check engine light code definitions. You can use a late 80s or early 90s gm tbi definition. This is a basic tbi harness for all engines using ecm 1227747 and 1228746 type ecm many others can be used. Typically technical support is limited to the customer with only a harness purchase due to the complexity of. Basic connections are standard but it is easy to customize one for your needs. Chevrolet vehicles diagrams schematics and service manuals download for free.
All the wires at the connectors have alphanumeric addresses showing where the other end of the wire is located ac cording to the grid. 1923 chevrolet car wiring 1923 chevrolet general wiring 1923 chevrolet superior model 1923 chevrolet wiring 1925 chevrolet superior model series k 1927 chevrolet capitol and national 1927 chevrolet capitol and national models 1928 chevrolet general wiring 1928 chevrolet wiring 1928 chevrolet. For a gm tbi application to read the data or to check for stored codes. Tbi wiring harness conversion. Wiring diagrams description these diagrams use a new format.
Gallery of 87 Chevy Tbi Wiring Diagram
