sputtering...

[Frankenstien93]

i have a 93 and i just recently put a turbo into it and im haveing problems with it idling and backfiring. right now im running N/A untill i fidgure this out. i have the stock fuel pump/injectors. replaced the plugs and wires and still it will idle ok for a little bit if i give it gas when its cold it will die right away i have to let it warm up then i can get it going. plus at a dead spot if i hit the gas there is hesitation. when im on the freeway and i have the cruise on when i go down hill it sputters but everything else is ok. when i let off the gas at it seems about at 1700 rpms i get a small backfire. the last thing is the four vacuum lines right under the throttle body i capped off. is that right? and i havent yet gotten the block off plate for my egr so its still open. ive been told many things and am trying to figure it out if its a vacuum leak or fuel or whatever.

[DammitBobby]

and i havent yet gotten the block off plate for my egr so its still open.

That is a huge vacuum leak! Fix that first then post your results. When you post your results tell us what your vacuum is reading at idle. It should be around 20.

http://www.rigidracing.com will have a block off plate that is cheap.

[Frankenstien93]

now im going to be installing the block off plate tonight as when as a rr fuel pressure regualtor and a walbro fuel pump will i have to do any tuning other than adjusting the pressure on the regulator? and ill be able to see the pressure before i start the car it should be at 20psi right?

[Craving4Boost]

you dont need to adjust your fuel pressure. just install the walbro pump..FMU..and boost that shiz

[Frankenstien93]

ok hopfully ill be done tonight i wont get to start till like 11PM

[Frozen240]

When I tried to block off all four of the vacuum lines under the TB I had very poor results. My car ran like a dog, no power at all, I couldn't even spin the tires if I dumped the clutch in first. All I had to do was take the cap off of the third line, this is looking into the engine bay from left to right. Problem solved.

Secondly; do you have a gauge for fuel pressure? You'll definitely want to keep an eye on this for the first while.

Good luck!

[Frankenstien93]

thx ill keep that in mind and as for blocking the egr will there be any difference if i block it off from thye pipe that used to go into the exhaust or just put a plate in between the egr and engine?

[Craving4Boost]

i blocked off all 4 vacuum under the TB and its perfectly fine. when you block off the EGR at the pipe, you wont notice anything at idle. but when you drive you'll get a sputter feelings every once in a while and most likley you'll go lean. just close it off period

[Frankenstien93]

as far as the line coming off the wg i dont have the adapter to go to a nylon hose i was just going to go off the compressor housing for my boost gauge what should i do with the one going to the WG?