ok guys, this is my first post. just want to say i have fixed just about everything on my 88 iroc from reading your alls posts. from floor pans to checking ohms on injectors. great job people! this might b a weird one for ya?

car was running like crap, threw everything at it. came down to a o2 sensor..
was so happy and actually got to drive it since i got it a yr ago.
next mourning was gonna drive it to muffler shop for my headers and exhaust
started it up (about 30 outside) the fans came on and back to running like crap!
i just bought another relay one was missing the other was there. temp sending unit thats already broke (i think) not reading on the gauge.

so now my fans wont come on, won't show temp on my gauge, and big hesitation with throttle and some stumbling. BUUT runs fine with the fuse out for f/b pump and fan. oh and charges over 13 in and below 12 out?

help me before i beat the windows out of it thanks