Every time that i come to a stop or hold in the clutch the car bogs down to 400 rpms or has even stalled. I checked to make sure that everything is plugged in and that the intake manifold and throttle body bolts are all tight. Does anyone have an idea what could be causing this problem?
Assuming you have an ecotec, this is a known problem. It is a fault with the coding in the ECU, and can be fixed by getting a GM technician to hook it up to a tec-II tool, and falsh it with the newest software.