I'm looking to find a website that explains how to check the codes on a late 80's GM fuel injection set up. My dad has a '89 Olds with a V6 in it and he's wanting to check the codes in the computer.

I remember how to do it but I'd like to find a site that explains how to do it so my dad can read it.

Thanks in advance!

 

You could go to Autozone and get a code key. They come with the instructions. When I asked them about checking codes, they just gave me the code key and an instruction booklet that had all the codes in it. It's just a cheap little key that jumpers the two pins together.