99StangGTTN

I have been noticing when my car warms up that it is starting to sputter some and at time almost feels like it doesn't want to get out of it's own way. I pulled my injectors out tonight to swap to 42#'s and there was alot of pressure but not alot of fuel when I bled the system at the port. Is it necessary to bleed the fuel system and if so how do you go about doing it.

bb 460

It's possible that the pick up in the fuel tank is cracked or the pump's failing and as for bleeding the system afterwards just cycle the key on and off a couple of times to get the fuel pump to pressure up.

99StangGTTN

It is a brand new pump. I just installed a focus SVT pump for my supercharger.

bb 460

You change the f/filter with it? The only way you can get air in there is before the pump. What's the boost pressure at? Maybe your goin lean from a bad computer tune?

ZW99GT

What kinda S/C did you get? I'd like to check it out.

where are you getting it tuned?

99StangGTTN

I did change the filter. I am not running in boost yet because I still am waiting for a few things before I tune it. I am keeping the RPM's under 2500. The only reason I am asking if it could be air in the rails is because I have changed the **** injectors 4 or 5 times (please don't ask why). But otherwise could it be something else.

bb 460

Pretty sure that the air gets pushed out at start up or the car will barely run. Since you have the bigger pump and injectors your car is probably over-fueling cause your stock cal can't handle it

97targa

The reason your car is okay when cold is because the computer tells it to run lean meaning less fuel! When it warms up it gives the engine more fuel and your injectors if not stock are feeding too much in there. You do not need to bleed the fuel system for air, but if it makes you feel better you can always use a pen and push the test port fitting in(protective eyewear should be worn at all times)..lol That sh.t should shoot right out that son-bitch. If you don't have fuel just itching to get out of there then you need to check your pick-up on your pump or see if your sock is on correctly!

99StangGTTN

Ya I am starting to wonder bout the tune on the chip. I bought the SC kit on ebay. It came with 60# injectors and all the other stuff and a diablo chip. I put the 60#'s in when I first started it up and it black smoked like crazy so I swapped the 60#'s for 30#'s. It seems to have ran fine with those but my friend needed his injectors back so I am putting 42#'s in it tom. Could I possibly have a bad connection on the chip to the ECU?
I am going to have it tuned possibly Fri. The thing that gets me is that it just started sputering like that today. The past few days it ran good.