Stangnsnow2

ookay i have changed everything the next thing is to change my fuel filter even though i changed it last year. my car misfires/ hesitates and then kicks on all 8 cylinders but at wot it is fine. cruzing around is when i really notice the problem i did new wires plugs coil and cleaned my mass air meter and still cant find this problem...anything??????

mjr46

what about a cap and rotor??

Stangnsnow2

yea new cap and rotor, i got a new msd distributor so it all came with it

PJC Racing

Post error, see following post.

PJC Racing

Have you pulled the codes? Is the car possibly running lean? I see you have a supercharger, what is the fuel supply system made up of besides 255 fump and adjustable regulator? How much pressure? How much boost?

mjr46

run a koer test as stated first, also make sure there are no vaccum leaks and all S/C tube clamps are on tight

Stangnsnow2

ran a koeo and got 81 and 82 and the smog system isnt on the car besides the pump for the supercharger bracket

the koer test i got 94 and 44

Stangnsnow2

and i forgot i have code 95 from the koeo test, however the fuel pump turns on and off?

deaverj

i have a msd dizzy on my 5.0 and i have nothing but problems out of it at the moment one minute it will miss fire then you go wiggle the dizzy then it run nice and smooth for a bit then it gos back to miss firing

deaverj

i have a msd dizzy on my 5.0 and i have nothing but problems out of it at the moment one minute it will miss fire then you go wiggle the dizzy then it run nice and smooth for a bit then it gos back to miss firing