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Discussion Starter #1
So a friend was helping me install a wide band controller and we spliced into the red wire with a green stripe that goes to the black connector next to the EEC. The car ran fine for a few days then started up rough one morning and I could almost immediately smell what I thought was wires frying. Car still runs, just runs rough, doesn't throw any codes. The wide band still has power through the wire. Did I connect to a wire I shouldn't have? If so what kind of damage could I have done? It's the wire in the picture with the electrical tape around it. Thanks for any help.

Chris
 

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Discussion Starter #3
Thanks, I've already spent at least an hour on that site alone, I still cant figure out where this wire goes exactly. I have scoured the internet and done all the tests I can think to do. I'm stumped.
 

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charge indicator light, is my guess

what on the controller are you powering? heater?

You need to make sure that the circuit can handle the current for the heater.

I ran a dedicated circuit for mine.

Also you must consider what would happen if the heater shorts.
 

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Discussion Starter #5
Thanks for the replies. I really am just wondering how to check if I fried something that could be causing my rough running condition. I am admittedly bad at reading wiring diagrams. I have already run every test possible with OBDI scanner with no issues. I am honestly not worried about the wide band controller at this point, I never even got a chance to connect the controller to the sensor. I am going to end up running a dedicated circuit for it like you said. I just need help deciding if that wire could be causing my issues or if I need to look elsewhere. Thanks again guys.

Chris
 

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Discussion Starter #6
I'm getting over 12v through that wire with the key on when testing the connection. Could I possibly be possibly chasing a problem unrelated to this wire?
 

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Possible

You should buy a wiring schematic for your car

It will make life much easier
 

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Red w/ light green trace?
It looks to be fuse #18
Runs to the CCRM and charge indicator

Fuse #18 also powers the ignition and transmission control
 

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Discussion Starter #9
OK I guess that makes some sense. It does seem to run smooth in reverse for some reason. Is it more likely that I fried the wire or the CCRM/anything else? I guess I'm going to have to tear all of this apart. Thanks so much for the replies.
 
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