94 transport unable to retrive codes

I have a 94 Transport 3.8 that won't start. I have fire,45psi of fuel at the rail and it has compression. Iwas going to read codes but unable to because it has an obd 1 connecter but it does'nt have the B termnal. I bought a GM code scaner at autozone but it will not work ethier. When I plug the scanner in the check engine just stays on. Any help will be appreciated.

I have a 94 Transport 3.8 that won't start. I have fire,45psi of fuel at the rail and it has compression. Iwas going to read codes but unable to because it has an obd 1 connecter but it does'nt have the B termnal. I bought a GM code scaner at autozone but it will not work ethier. When I plug the scanner in the check engine just stays on. Any help will be appreciated.

For most 94 and 95 3.8, you can´t use the paper clip trick to pull out the codes by flashing the CEL. I guess your code scanner is something cheap for 25$, and is working the same way, trying to flash the codes out. You need a more sofisticated scanner, that can read the 8192 baud OBDI data stream. You can also get an interface, (build it yourself or buy it) and use software from
www.pontiac-transsport.de
in a laptop.
With this software you can read out more data from the engine, tranny and the ABS system, and not only pull out the codes.

check the harmonic balancer. They are a common problem on your engine, and when they separate, they throw your timing off to the point the engine won't run.