The o2 sensor had to have been bad my butterflies were'nt opening up until i unpluged the o2 sensor so i replaced the o2 senson once i noticed my a/f ratio gauge running on lean all the time..Now i will buy the mil eliminators..Im no mechinac that i wil say but i have learned all i know fro trial and error..My check engine light has been on ever since the catie was gutted and muffler cut off and i was out racing my car one night against a focus svt witch by the way i was taking the lead by a car i was doing 125-130 and i believe i was in 4th gear and i didnt shift to 5th i went to 3rd yes i know very very very badddd i am haveing trans problems and thats when i noticed my power lose problem and seen the butterflies not opening and i replace the imrc control box and nothing changed so i traced wires to the fuel injector wires and it t's off and the one side goes to the o2 sensor so thats what really happened if anyone was wondering..So maybe i had messed the o2 sensor up not sure but all i know is it runs alot better..Except my trans hard to shift i hear a bunch of chattering..the car shakes like is has a cam job..i was told i could have throwen balancers off the flywheel?????? Not sure but i plan on getting a new trans and clutch and flywheel..????..Any suggestions on why car could be shaking?.Motor runs very strong only 9k on it bought it brand new ford never fired motor.
