Fuel cut off

[5l_eater]

i have a problem i keep hiting fuel cut off as soon as i hit boost..for example in for gear at like 3000rpms i hit boost it fallso n its face any ideas ?

 

[Shima]

boost leak

 

[ATL88Supra]

a big ass boost leak O_O

 

[5l_eater]

really ok so how do i test to see were the leaks coming from ?

 

[bountykilla0118]

ummm take a look at your pipes and couplers ..... or build a boost leak tester

 

[JDMMA70]

try looking at the lower IC Hose coming off the turbo outlet.

 

[1992supraman]

use the search button. theres about 500 threads on boost leaks.

 

[5l_eater]

well its not a boost leak any other ideas im thinkin it might be a fuel problem maybe the injectors or could it be the ecu cause it to run in default mode makine it misfire and run lean and rich ?

 

[jdub]

Did you do a leak test? Did you check every coupler from the turbo to the IC to the TB?

Reason I ask, you didn't tell us how you know it's not a boost leak (sure sounds like it to me).

Also, did you pull ECU codes?

 

[Nalleywhacker]

dude check the hose right were it bolts to the turbo i had it pop off on me there once, it might have started to agian.

 

[suprra_girl]

What's been done to the car? i.e mods?

 

[Nalleywhacker]

What's been done to the car? i.e mods?

unless hes changed anything its the stock ic piping and stock turbo.

 

[starscream5000]

Build a tester.

Go over the intercooler piping once again. If it all looks fine, tighten up the clamps, every one of them, one or more may be loose, causing you to leak boost between the rubber coupler and the plastic piping, but I would hazard a guess and say that the leak is probably due to a tear or hole in one of the couplers if it's cutting out around 3K RPM.