hey guys i have a 1990 fc i believe its an s5 motor and im have problems with the idle. what happens is i start the car and it jumps to 3k and then sits for 4sec like that then drops straight to lower that 500 then goes back up to above 1k over and over then eventually dies. whats my problem??

 

Adjust the TPS

Fix all vacuum leaks

Test the BAC valve and clean it

 

thanks man ill try all that as soon as i can and ill come back if im having any other problems!

 

Seems like alotta trouble with the tps on the 7s, and a pita to adjust...

 

I adjusted my tps and messed alittle with my idle adjust screw and problem solved...