K well i just got a f22b swap done tonight, the guy who worked on it thinks there might be something wrong with the O2 sensor because the check engine light just pops on for no reason (if u restart the car, its gone). Same with the ABS light. Anyone know what could be causing this?

 

wiring.. i used to have the same problem.. the o2 sensor wiring kinda died out.. and then it shorted HELLA fuses.. didnt know what was wrong until i found the saggy o2 wire touching my axle

 

Did you try pulling the code to see?