What is the clear connector by the ECM Connectors??

[cabech984]

I am doing a 3.8L swap into a 90 Firebird. The connector that comes out of the hole for the ECM Wiring. It is Clear or white. What connector is it? What does it do? Anybody have a diagram??? I need to make the GN connector work with the 90 Firebirds connector. They are physically the same part but of course, the wiring is different.

 

[SouthernCal GN]

Believe those are the harnesses for the dash wiring.

 

[mikestertwo]

It's the interface connector going to the fuse box and dash harness. It's where the computer gets switched power, power for the injectors, vss signal, ect.

 

[cabech984]

I was afraid of that I am connecting a 1990 Firebird Dash to the 87 GN Harness. Does anybody have any diagrams I could use to make it happen???

 

[S10xGN]

C437 is the connector... Cannot for the life of me figure why I have it labelled "434", that's definitely wrong.

 

[cabech984]

C437 is the connector... Cannot for the life of me figure why I have it labelled "434", that's definitely wrong.

Thanks for the diagram. I still cant figure out why the connector is a C4XX anyways. It is called C208(I think) in my 90 Firebird. GM normally calls them C2XX under the Dash.

 

[cabech984]

Now to find this for my 1990 Firebird