Irish, I searched a bit on "Quad driver B Fault" and got a few decent threads. This one is quite old, but seems pertinent to your problem, perhaps. Read the whole thing, then let us know if your symptoms are the same or not.

Quad Driver B Fault

I also had the quad driver issue and egr problems. My fuse was burnt, but I also found many of my wires in the harbness that goes from the module next to the connectors by the alternator melted and cause multiple shorts to the ECM. At the end of the day,separated all the wires by retapeing them. it got rid of the quade diver B. Engine started and stopped after 3-5 mins. Found that the cam sensor magnet (stuck to the sproket) was gone that drove many ECM faults. not sur eif this helps ya. This is day 3 for me and still putting it back together.

that does seem about right, but im not to sure about the SES light coming on during declaration, I ll have to check that, but im am gettin only 2 to 5 psi of boost and ever once in a while i get the full amount but that only when it is the first start of the day.also i am getting the crapping shifting. so i guess ill but a BCS and just put it in, cause its only 20 bucks and wont have to worry about it later, ill update later today, thanks for all the help so far everyone

ok i put the new used BCS in, i found one at the junk yard. But im still gettin a the the same problems and still code 56. It does seem to be getting more boost. But i double checked every thing my TTC is engaging, i sprayed and lubed the EGR, replaced the BCS and BCA, and held my finger over the evap and thats working. So i just dont know what else i could do im out of ideas. Unless i got anther bad BCS.

Measure the resistance of the BCS from pin to pin and report it back here. Do the same for the evap purge solenoid.

what do you mean from pin to pin?

There are two pins on the BCS and on the Evap purge solenoid. Measure the resistance between the pins. Not the harness, the actual solenoids.

sorry it to so long to get back..im in the middle of moving and i cant find my multimeter, but the good news is that my SES light is gone and so far it hasn't come back. It shut off 2 days after i put the new used BCS and BCA in. But when i get unpacked ill still measure it and see what it says.
Thanks every one for all the help.

Hey Can you tell me where the EGR is located on the 92 ... Everyone on here told me there wasnt one on the 92 but i see you have one. Can you please help me out. thanks .. email me at anthony042018@aol.com or send me a message on here.

Anthony, please ask your questions in your own topic. This is the fourth topic you've asked the same question in.

I'll answer you here just like I did in reply to your PM, but after this please continue in your OWN topic.

HE has an EGR because he has the supercharged engine. You do not. You have no EGR. The EGR is not your problem. Continue troubleshooting in your topic.