99 harness has an extra plug(Grey one) that is also hanging from the dash. I have to use the one from the engine harness or the car wont start. The original harness in the car was spliced all to hell and did not have this grey plug, so I attached the one from the dash. All worked. But this harness was throwing CELs like crazy. I have tried to rewire it but many plugs/grounds are missing and its hard to tell where it is supposed to be.

I have no bare wires left on it but still slot of stuff missing. This car was fucked up electrically but somehow everything was working. Id like to get my hands on another harness just like the original but i dont know what the hell it came from.

 

Allright, i gave up and sat down with a soldering iron and some shrink tubing and made me a new harness and everything works now...thatnks for all the help

 

LOL....I just wanted to tell you to modify it yourself .
Good work