AE86 engine harness help ..

[eight-six]

Quote:None of the wires that run thru that 9-pin plug have anything
to do with the ECU. They are just switched power supplies and
gauge inputs.

Sorry probably didn’t make my original question clear. On the early spec loom the bulkhead connector is only gauge inputs and power supply, however on the late spec loom it does not have this bulkhead connector.

My question was where these various cables go on the late spec loom, do they feed back into the ECU or are they simply re routed through the under dash harness. The point is the gauges still need their inputs; the starter & igniter still need their power feeds – if there is no bulkhead connector where do these wires come from (ecu or the under dash)

This is the situation for me is; as its proving very difficult to track down a early engine wiring harness I convert the readily available late spec one instead – but before I pay out for the loom I really want to know I haven’t over looked some key aspect – ECU/cable wiring differences/differing loom set up etc.

I am however quite tempted to get a late loom and convert it to what I need. It looks like I can pull the cables out of the pin outs on the ECU and swap them around, I might just do that – splice in the cables needed for the bulk head connector and see what happens.

Cheers

James