Well i just got my car back from the shop and i went to drive it and im getting like no boost. Gets about 2lbs but thats it. Got home, ran the codes and it came up with

code 26: Quad driver module "A" Circuit
code 43: Electronic spark control circiut or Knock sensor problem
code 56: Boost control solenoid
and 58 which i believe is the PASSKEY code

The BCS was from my old engine which i had just bought the thing about a month ago or less and i dont see why it could be bad already, so i took the one from the engine i just bought and im still getting a BCS code. And what exactly is the code 43 entail? Could that be causing my low boost problem and how can i fix the #43?

UPDATE: Bypassed the BCS and now i get boost but at WOT it bogs down heavily and i actually had the car stall, Also the rubber hose going from the BCS to that round canister thing broke so theres no hose on the top right outlet at all anymore.... is that bad?

Also where are the Knock Sensors on a S1 L67? and how do i replace them or the Electronic Spark Control Module?

Well i wanted to try that boost bypass deal and i tried it but the damn hose riped where it hooks into that canister thing and i droped it and cant find it, but i am getting boost now but now theres another problem, car says its in boost, i feel a big pull but then my car bogs down ALOT, whats wrong with it now? should i get that hose replaced or what do i do now?

Don't even think about replacing or fixing the BCS, or bypassing it until you've fixed ALL the vacuum leaks in the entire system. Sounds like that'* a problem right now.
(this includes the line to the charcoal canister that you described to me in your PM)

ESC will be either the crank sensor, ICM, or POSSIBLY the cam sensor. You have some major problems. Do you have a service manual of any kind?

No i dont have a service manual of Any kind. I went to autozone and they didnt have one for our car. Also how hard is it to replace any of those items you mentioned? I have money but changing those items is going to be the hard part, can i do it myself or would i have to have someone else do it? Should i just go to autozone and buy the parts (ICM, Crank and Cam Sensors?)

If you start buying parts and trying them, you'll end up a poor man very quickly. Fix the vacuum lines, and disconnect your battery for 30 minutes to clear codes. Drive the car for a day, and check for codes again. Let'* get a fresh list.