sputtering and backfire help...

[greasemunkey]

ok so I just got done putting in a clutch in my new car and it started to backfire shortly after then progressively got worse with sputtering and whenever I put it in gear and try to go it feels like its got really bad gas going through it and it tries to odie so I take it out of gear, im thinking vaccum leak or mis matched ecu plugs that I undid to take out the trans. I have no cel's or oil light but I'm not sure they work either :thinking: had to give it gas to start it at first last time I tried and after that I just turn ignition and it starts right up. Any advice will be apprecieated, just trying to get ideas for tomorrow. BTW car has full tune-up new filters all around, plugs, wires, cap, cat....

[greasemunkey]

nobody?

[redrumracer]

make sure the timing is correct.

[greasemunkey]

timing was never changed, but I will check if it jumped...

[eghonda88]

if you try to drive it and it sputters and backfires will it eventually get a good burn and kind of accelerate fast

[greasemunkey]

sometimes, then back to bog...

[jew_boy]

your timing could have jumped if you got on it for ex. throwing it down and it's already near the end of the gear

[greasemunkey]

car was never ran hard since I have bought it. this is a dd, I don't need to be breaking anything by racing with a 100hp motor, just not worth it.

[eghonda88]

it may be your fuel pressure. check your fuel pump and fpr. see if anything is cloged in your fuel rail.

[greasemunkey]

just left it at a shop to diagnose it. For once I feel like letting the professionals take care of it, er figure it out then ill take care of it...

[eghonda88]

yeah, it sounds like something that happend to mine. My FPR went out and I havent fixed it yet haha i built an ls/vtec waiting to go in it.

[greasemunkey]

turns out it was a bad injector...WOW 99% of the time its something else, in most cases I hear that it could be the injectors but it ends up being something else. Then that threw my o2 off trying to make up for it by running the other 3 rich as hell, I thought I smell'd gas...BTW big props to tristar automotive, they are expensive, but the only people I really trust, their techs know their shiit

[greasemunkey]

put in the injector and it will hold idle better, but still sputtering bad.... :( I hate cars!!!!!!!!!!!!!!!!!!!!!!!!!!!!