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View Full Version : Loss of power when goin into boost


mystacarlo
05-12-2008, 07:22 PM
My car is acting strange now, when i floor it, the turbo will spool and you will begin to feel the car start to pull then all of a sudden the air/fuel ratio goes rich and the power dies, and the wastegate opens quickly. So i know the car is goin into retard, my question is why is it doin that?


the car is a 96 skyline rb25det

my list of mods are:

walbro 255lph fuel pump
z32 maf
hks ss
garret gt3076 ar 82.
safc2

can anyone lend sum help?

S14DB
05-12-2008, 07:31 PM
vac/boost leak.

mystacarlo
05-12-2008, 07:37 PM
boost stays pegged at 10psi

bardabe
05-13-2008, 05:24 PM
it can still be leaking, just cause it's still at 10psi dosen't mean your turbo's aren't working extra hard to keep it there, not to mention you can be running pig rich. just do a boost leak test.

mystacarlo
05-13-2008, 08:29 PM
yea, ima go over all the couplings tomorrow, because i checked to see if i had any cel's in the ecu and everything is fine. ima change my fuel filter and plugs tomorrow and see if that does anything

Blown240sx
05-14-2008, 08:50 AM
You need to get a Power FC on that motor. Id say eithe ryour map is really F'ed up, boost leak, or depending on where in the RPMs your VTC might be the issue.

mystacarlo
05-14-2008, 05:37 PM
it was a boost leak, and its solid now.

mifesto
05-15-2008, 12:39 PM
if u havent already tbolt clamp da bish :)