Hi everyone, I'm new to the forum and looking for help for my Grand Prix SE 1994.
I have a problem with my EGR and would like to use ALDL to diagnostics the problem. I have to connect A to B on the diagnostic connector but it appears that I don't have a B, does it make any sense?
Any help would be appreciated! Thanks.! Michelonca!

later gm models cannot be scanned for codes
using this method (ab short) if you don't have
b contact, then the only way is to read the serial data using a scanner.

Hi Shak911,

Thanks for confirming,
Michelonca