Have a 1985 Trans AM - 305 V8 L69 Engine - 5 spd

Bought the car last year and have started trying to clean up the engine area this summer.

The Previous Owner(s) disconnected/removed the AC and most of the smog equipment - trying to play catch up trying to figure things out on this car as a lot of the wiring has been cut/spliced along with equipment changes.

First off, the carb has been switched to a Holley Street Avenger 570, and Edelbrock TES Headers were added to the car.

Currently I am trying to figure out how to reconnect the 02 sensor - I have been searching the board and believe I found a thread that indicated the O2 sensor wire is purple, and is supposed to be in a loom on the drivers side of the engine with a green wire that leads to a temp sensor between sparkplugs on drivers side of engine - no purple wire there!

So I tried to trace backwards from ECM - I looked at the ECM wiring loom coming from the passenger side - and of course I found a lot of wires disconnected. There are exactly 3 different connectors not connected to anything, and low and behold an pinkish/purple cut wire (not sure if this is the O2 wire I am looking for).

Anyways, I am attaching two pictures - one is the cut wire from the 02 sensor, and the second is a picture of the disconnected wires on the passenger side - you will see 3 connectors not connected to anything and a solitary puprly/pink wire that is just cut and doing nothing.

I am somewhat a newbie when it comes with anything electrical or emissions related so any HELP is totally appreciated.


Disconnected and cut wires



02 sensor - cut wire