dimebag

ok so ive been havin this problem for a while... still trying to figure it out.... heres what it does

anywhere from idle to 6k if im at very light throttle, just enough to get it to go slowly up to 6k in 1st and 2nd it runs just fine
however, once i hit WOT above 3k it backfires badly, and runs like shyt... all my electrical stuff is connected well, donesnt throw any related codes at all, but its very obvious that something is wrong.

im thinking fuel injectors? thats all i can think of? anyone have any other ideas? or able to confirm that? see i think its that because its not asking for as much fuel at part throttle as it is at WOT, so are they just old and need cleaned/replaced? i would say its not my tps, only because if i go WOT under 3k im fine

so help my *** out!!!!

92hatchLX

Mine does this sometimes too, but it's not as big of a problem as you are describing, it will give one (almost un-noticable) pop once I start getting into my powerband (around 3k-4k). I think that I may be running slightlylean with all of this warmer weather. I'm going to try decreasing my timing just a tad and increasing my fuel pressure for a temporary fix until it gets tuned.

PRO50SC

Could be your coil, module, pick up. Any of the secondary ignition for that matter.

dimebag

coil, cap, rotor, wires, plugs all new...

modual and pick up?

dantheman345

I was just about to post this , then I saw your post. I am having he same problem. I am thinking mine is because I have put to horsepower parts on and now my fuel pump can't handle it? Mine starts the bogging and jumping right after 3k anybody fix this problem?

dimebag

mines stock...

5.0stanger

Watch your fuel pressure...that might be a good place to start.

dimebag

im going to get a guage tomorrow i think... or replace the pump and get an adj regulator n e way, since i plan to spray it when i get this taken care of.


ppl on another "SmallBlockFordTECH" site think it is electrical, or sensor related...

94yellowstang

Is it a popping nosie?

dantheman345

mines not popping just cutting out. I am going to check my fuel filters and lines tomorrow (sorry to steal your post but I didn't want to make 2 of the same topic)