ive been looking around for a few days and havent found to much, i just bought a 00sh with the atts and trans taken off i switched to a t2t4 trans. i was driving it around for the first time, car hasnt been driven in almost a year it did fine for about 70 miles. after I put more gas in it started misfiring on #2 i changed and plugs it got slightly better now only over about 20% or more throttle (only while at ot) it bogs down and miss fires, ive cleaned the iacv and tb does anyone have any idea what could cause this. the car runs great after sitting all night unitl it warms up

 

Maybe you kicked up some crud in the gas tank. I would do a fuel filter, and maybe run some BG 44K through it.

 

Check the o2 sensor that gets everyone check it it does have a heated o2 and probably bank 1 sensor before the cat or it could be the cat itself.

 

ive ruled it down to what i think is an ignition problem the tachometer goes nuts under heavy throttle (if its not misfiring) im getting code 15 and its got some after market msd bullshit on it no extra exteral coil just an ungraded stock one (no box thingy) any ideas

 

Its gotta be that then cause that's ignition output signal wiring maybe loose or the ignition is just getting bad.

 

If the tach goes crazy, I'd be suspicious of the ICM inside the distributor. What all MSD stuff is on there?

 

it was the damn msd cap i figured bad icm replaced whole dizzy put msd cap on old dizzy that worked and it stopped. so i set fire to it