I have an engine from a 97 Firebird.... and the harness was chopped... I Have the Harness and PCM from a 94 Z28 LT1/A4

What do I have to do to convert and use the OBD I stuff.

Thanks Alot,

Joel

 

Just plug everything in. It will work fine. What year car is this being put into anyway?

 

For the pcm to work properly and be a true OBDI conversion there has to be a resistor soldered in on the pcm. The car will not run right without it. Im not sure exaclty where it has to be done but my buddy does.

 

I never soldered anything into my OBD1 PCM and it works fine.

 

Its going into a 94 Z28, the engine is from a 97 Firebird..... the harness was chopped...

I never heard anything about any soldering??

97WS6SCharged... Did you have to do anything about the OPTI? or any sensors?

Thanks,

Joel

 

If you are doing a OBDI conversion there is a resistor soldered into the pcm. I can promise you that.

 

can someone go into detail with soldering this resistor, and what its needed? post pics maybe?

Thanks

 

Only thing I can think of that you would need a resistor for would be the VATS, but that can be disabled by reflashing the computer.

I didn't have to modify a thing. Just unplugged my OBDII computer and plugged in the OBDI. Hooked up my laptop and started hitting keys.

 

Like I said, Im not exactly sure what it was for but I think it was more important than the VATS. I got the OBDI conversion from pcmforless and my buddy wanted to see what the difference was so he took the pcm apart. He then discovered the extra resistor that had been soldered in for whatever reason Im not sure. I can find out if no one here replies about it before I get the info.

 

If you could, please find out, But I think Ill try just plugging it in and going from there, but it would be nice to know what this resistor is for.

Thanks,

Joel

 

The resistor is for the knock sensor. If you use the knock sensor from the 94 you'll be ok. If you use the one from the 97 you need the resistor. I just got a computer back that Ion at madz28 put one in for me.
You can read about the conversion package here http://www.madz28.com/9697.php

 

alright, thank you

 

If I were you I'd ask Ion (Madwolf) or call Bryan at PCMforless. They are cool guys and I'm sure would help you figure this out.