Please HELP!
Hello all. I just bought a legacy gt wagon. The car has up pipe and downpipe and cobb stage 2 tune. Today I was trying to take it home. Car ran great on test drive and after oil change. I connected the green connector in the passenger footwell (I KNOW NOW THIS IS BAD) and we drove to gas up to go home. Car wouldn't take gas (bad tank vent?), and so I slowly filled it to full at the pump. When we went to leave, I started the car and it wouldn't idle or run right (flashing check engine light). Restarted and drove back 2 minutes to where we came from and parked it. First thing I did was read what to do with green connector, disconnected it, then followed procedure to reflash tune according to cobb website. Car wouldn't idle and threw codes for cylinders 2&4 and pfffe code through cobb ap. Also threw a low starter voltage code.
We troubleshooted injectors and confirmed that passenger rear and drivers front were no longer firing audibly when running. We then tried to swap injectors and the screws on the hold down plates both stripped heads when we started to re tighten them in their new places.
Car is now stranded somewhere it can't stay long, please offer advice. It went from running great and pulling great to misfiring at idle and with any throttle. Going to go back and check with volt meter on injectors and possibly coil packs tommorow. PLEASE HELP.