GSR swap, OBD 1, ECU jump shorted out, chipped P28
 

So yeah. I think I shorted out my Blue ECU jumper cables. I forgot to take the paper clip out and started my car. Drove it a few miles to autozone to get a new part and then I noticed the check engine light came off. I checked the ECU and saw I left the paper clip in. I replaced the part not thinking anything of it. Car was running fine until I started getting bad TPS symptoms.

I bought a new TPS. Car runs great now, but the check engine light is on and the paper clip method doesn’t work.

Im thinking I should just remove the wires from the harness, and rewriting it myself straight from the harness... I’ll probably do this next weekend. Any advice before I start hacking up my harness?

Re: GSR swap, OBD 1, ECU jump shorted out, chipped P28
 

find out the issue before making more of a headache of the situation.

Re: GSR swap, OBD 1, ECU jump shorted out, chipped P28
 

That's the problem. I can't. I shorted out the ECU jumper so I cant pull engine codes off the CEL anymore...

Re: GSR swap, OBD 1, ECU jump shorted out, chipped P28
 

nothing happened to the jumper wires. Use another compatible ECU and go from there.

Re: GSR swap, OBD 1, ECU jump shorted out, chipped P28
 

The jumper just grounds one of the ECU pins (the other wire in the jumper is the green/white sensor ground). You can backprobe the pin to see if it is being grounded when you put the jumper in. With the jumper out the voltage should be about 5 volts.