Need help finding the wiring for the ECU in the cabin, I need a 12v which is obvious, but I'm not sure where the ECU wiring is. What I'm trying to do is install a fuel tuner (crosses fingers) and hopefully place it in the empty box underneath the Radio. Any positive help is appreciated.

 

what wires do you need

most are under the hood

 

All I need is a 12 volt wire which can be routed through the cig lighter and the ECU wire. But I don't know where it can be located

 

what ecu wire?

o2 sensor or what?

 

The ECU harness, sorry

 

The ECUharness to/from the engine is completely under the hood, the power feeds, grounds, check engine wire , ect., go from the ecu (PCM) under the hood, if you need to get to the ones under the hood, check here

 

Has anyone ever done this before? Where do the wires come out in the cabin?

 

Here's a pic of the 95 PCM wiring harness, from Shoebox's website. He also has the wiring diagrams for the 95 on his website. The main wires into the passenger compartment that you might possibly need for adding a "fuel tuner???" (I really don't think many people have tried this) would seem to be the data wires for the ALDL connector under the dash.

http://shbox.com/1/1995_Z28_engine_harness_A4.jpg

If you can tell us specifically which wires you need to find, maybe we could help you find them..... just describing them as "wiring for the ECU" doesn't tell us which wires you need.

+12V, switched, is easy to find. There is a pin in the fuse box at the end of the dash marked "IGN". That pin is fused through the adjacent fuse. You put a 1/4" female spade connector on the wire, and push it onto the pin:

http://cjcfo.fbody.com/members/injun...C/DCP02496.jpg