EFI problems?

[swampthing]

alright i was having a bad problem with my truck spitting and sputtering under heavy load...today i changed the throttle body and TPS and it ran like a brand new truck...it sat for 7 hours while i was at work...ran great for about 10 minute on my way home from work then started spitting and sputtering worse then it did before...i doubt its the EGR or o2 due to the check engine light not being on..any ideas?...im thinking it could be the pick up in the distributor going bad and messing up once its hot

 

[Yardape]

sounds like you need to monitor this for a few more days and get a bit more info, cant really rule out anything yet, maybe the light doesnt work or something. Could be as simple as a vaccum line. Watch it and then pull your plugs if you still have no ideas. My Number 8 plug is fouling up real bad ever since my nasty wheeling incident back in Oct.

 

[swampthing]

i just took it out again after letting it sit for 2 hours...cold the thing ran like a ***** date...lots of power great throttle response..as soon as it got hot it started running ****** again..so i have it narrowed to what i think is electrical problem..im changing coil and distributor tomorrow..and yes my check engine light does work...all my idiot lights work

 

[swampthing]

lousy crap is getting me mad..wasnt EGR...changing distributor tomorrow and new plugs..if that doesnt work..fuel pressure regulator and new module

 

[swampthing]

ok after doing throttle body IAC TPS and EGR...it was the distributor...there was moisture behind the IGN module and the pick up was bad..new distributor and spare module with new good dialectic grease fixed the problem

 

[Yardape]

Right on, good to hear

 

[swampthing]

only problem is the module i got is just a spare...still getting a spit and sputter once it gets hot and i try to powerbrake..getting brand new module..new fuel filter...possibly whole new upper lower intake fuel injectors regulator so on and so forth