stebon

ive got a 92 ls boosted integra. everything was running good for a while but now at about 4k rpms it takes a crap on itself. it will not go over that. i was told maybe some vacuum lines got mixed up but everything looks fine. any ideas???

backtoarms

When you boosted it did you get it tuned? Sounds like a fuel cut.
Also, did you upgrade injectors and fuel pump when you added your turbo? Or did you just slap a turbo kit on there and call it a day?

stebon

yes it is tuned with 440 injectors, but stock fuel pump but the prob started well after the turbo was put on and it was tuned

stebon

the way i had the waste gate vacume line hooked up it was running throught the map sensor. i was told the map sensor could be bad and was also told a vacume line could be messedup.

it started one morning when i was about to go to work. the night before i was driving it and it was running good and strong the when i went to start it in the morning it wouldnt idle right. then it started smoking which come to find out it was fuel. not exhaust.

i can drive it but it wont go over 4k. when i try it sounds like im bringing it up on boost antilag.

Fabrik8

What are you using for a MAP sensor, the OEM one? Those aren't known for holding up to boost especially well..

Unlimited Auto

Are you throwing any CEL's?

When you say it won't go above 4k rpm is that under boost or driving normally?