I'm having many problems with my car now. I just put in the turbo and sfmu and everything and took it for a test drive. here are some problems.

1. Car occasionally stalling when stopping.
2. Car idles at around 700 rpm.
3. Car's boost goes all the way up to 13-15 psi on stock internals.
4. Car shooting out lots of black smoke.
5. Very choppy idle.
6. Fuel pressure doesn't seem to raise when boosting.
7. Car smokes under the hood.
Now i don't have a front O2 sensor which might cause a problem. Also have a small exhaust leak which is prob. why it's smoking. But is there anything else i need to check to get this all working?

Please help me!!! thanks

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It's only been up to like 13 once or twice. Im trying to get a O2 sensor but i was just checking to see if there was anything else i can do.

i have a t3/t4 with internal wastegate.

And fuel pressure is about 48psi idle on stock.

Ummm cars don't run right without an o2 sensor, probably most of your problem.

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The stock setup is 40-50 psi at idle (depending on which car you have). On stock injectors with the turbo, you will probably end up around 50-55 psi at idle. The HRC kit asks for 80-90 psi at 6 psi boost. I'd expect that you'd want a little more fuel than that. Get your oxygen sensor and figure out why your boost is so high. That is not a good idea on stock internals.

Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire

45psi - 50psi is correct idle with stock injects
Nick
97RS

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ok so I got an O2 sensor. I was running super rich. But it's still smoking a lot. And my idle is very choppy (aroung 700rpm) What should it be idling at? Also whenever I hit over like 3psi my engine leans out. So maybe i need other SFMU disks. But on the sfmu should the boost be all the way in and vac all the way out? And is there anyhing else i should check.

my car is pretty much stock and idles around 700rpm?

2005 Legacy GT Ltd, Garnet Red Pearl
speak softly and spool a big turbo

13 psi a few times on stock injects on a stock motor? I'd do a compression test right away on it. Your bad idle could be a cracked piston ring land on one or more of your pistons. I could barely get the 310 cc injectors to give me enough fuel for 13 psi..I'd bet you ran it too lean for a brief moment, and got some detonation, and did some piston damage. Do a comp test, and while the motor is idleing, pull the oil dipstick out, and see if its puffing any air/whitish smoke out. If it is, then cracked ring lands. It doesnt take much detonation to kill these pistons. If your boost gague has vac on it, you will notice it has lower vac at idle too. Should have 17-20 hg's at idle.

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