Ok heres the story, had a low idle and it would sometimes stall and die at a stop and while driving it would kinda surge or pulse up and down which felt like someone bumping into you constantly.
So i replaced the tb gasket and put a new fuel presure regulator kit on it. the old kits spring was rusted in two and looked really bad. Now when I drive it I can still very slightly feel the same pulse or bumping, its faint but still there. What should I do next? maybe buy an entire new regulator? or do i need new injectors?
It still wants to die at a stop as well. Not sure why.

Any help would be great
Thanks

 

I would remove and clean the EGR valve. It is possible that it is leaking past, giving you inconsistent O2 sensor readings.

 

Which one is the EGR? Im new to the tbi system.

 

egr is the funky lookin thing bolted directly to the passenger side of the intake slightly behind the tbi that has a single vacuum line runnin to the little 3 pack of sensors on a bracket