1992MustangDW
05-09-2009, 07:20 AM
Ok I can start my car cold and drive it up the road, when I get about a 1/4 up the road or car starts to warm up it starts missing.
Its a really bad miss. If I let off the gas it will idle, If I hit the gas to try to make it move it will just start to die and pop really bad. A lean pop threw the intake.
I checked the plugs, they look good. I cleaned the distributer cap. New wires. new fuel pump. New Fuel Filter. I did take the egr off and havnt shut it off on the car, with a tune. The car is speed density.
When I hooked up the fuel pressure tester I had 20 psi when I turned key forward.
When I started it the fuel pressure was at 35/36.
When I unplugged the vaccum on fuel pressure reg it was at 40.
when I blimped the throttle the fuel pressure dropped to about 30.
When I shut it off the pressure didnt stay there it had only about 15 pounds after about 3 minutes.
Its a really bad miss. If I let off the gas it will idle, If I hit the gas to try to make it move it will just start to die and pop really bad. A lean pop threw the intake.
I checked the plugs, they look good. I cleaned the distributer cap. New wires. new fuel pump. New Fuel Filter. I did take the egr off and havnt shut it off on the car, with a tune. The car is speed density.
When I hooked up the fuel pressure tester I had 20 psi when I turned key forward.
When I started it the fuel pressure was at 35/36.
When I unplugged the vaccum on fuel pressure reg it was at 40.
when I blimped the throttle the fuel pressure dropped to about 30.
When I shut it off the pressure didnt stay there it had only about 15 pounds after about 3 minutes.