Good fuel pressure

[ORFORD2004]

I just change the fuel pump in my car and when the vaccum hose is disconnected from the regulator, i can read 38PSI. If i plug the hose back, i can read 28PSI. I cleaned the 4 injectors in ultrasonics machine for 1 hour using acetone and no heat. But vibration eat the acetone so do it outside. One of the injectors is missing parts on the side of the plastic head . I replace all seals and put them back. I just unplug the hose and plug it whit a srewdriver bit to run at 38PSI. Anyone see any problems?

[engineerted]

YES! Acetone? That stuff will eat any type of plastic. A better choice would be denatured alcohol or kerosene.

Ted

[ORFORD2004]

So the solution is new or rebuilt injectors?????