Hey all been a while O2 Censor Housing Question.

[mike gigante]

I posted a while ago, I have the stock O2 Censor Housing. I am running around 16-18psi on stock turbo, and when I am getting up near full boost all of a sudden the car jolts, ill chirp tires and it feals cool. The problem is it will keep doing this over and over through out a whole gear and then the same thing in 4th, 5th as well.

All gears except for first because it is such a short gear. I have a air/fuel ratio guage and I am always ina good zone. I have a 120 external fuel pump and pushing about 65LPH I believe it is. (I have a fuel pressure regulator) If I pump any more then that I start drowning. The car is running great except for that. any one here in south florida? Fort Lauderdale area? maybe we can hang out and some one can check it out. If you have any ideas let me know. also I am curious about a oil leak on the hose going to the top of the turbo.

Let me know.

 

[larryd]

does the car feel like it hit a brick wall and throw you forward, if so thats fuel cut man.. to much boost..

 

[mike gigante]

nice thats what it feels like and that is what I thought originally, but a while back my friend posted here and some one said maybe o2 sensor... but what could be the fuel cut? I guess I should lower my boost all the way and see if it does it and go from there...

any other suggestions? anything about the oil hose going to the turbo

 

[larryd]

if you have a leak on the oil line to the turbo find the leak and if its in the line replace the line..

 

[b0b_ace]

i am seeing the same thing....

ive got the stock 14b @ 15psi but it spikes to 17 under WOT. only on this one street by my house do i hit fuel cut but when i get on the loud pedal it happens like clockwerk... boom, no more fun.

what i am wondering is what i can do to combat this...
im set up as follows: (91 gvr4)
stock except for mbc, 190lph walbro w/rewire kit, boost guage

at my mechanic's, i hooked up his datalogger and found unpleasant behavior from the o2, but it has yet to be replaced... (hence posting in this thread). could that really have ANYTHING to do with hitting fuel cut (and even when not at WOT the CEL comes on when i drive down that same street).

thoughts?

ALEX
#569