At 5k, I'm on the 2 step.......

DsmKhan said:

I put a new hose in the brake booster

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Did you replace the check valve into the new hose?

steve said:

Did you replace the check valve into the new hose?

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The check valve is inside the hose

PlanZero said:

I hope the blockoff plate you refer to is actually the bypass plate for the FIAV not the ISC/IAC blockoff plate that is also available. If you removed the IAC (the big black sensor on your TB) for any reason make sure the o ring is still in place. The FIAV bypass can be modded for free but can be problematic so most people just use the $10 plate.
Besides doing the obvious BLT did you try adjusting the BISS to bring the idle down? I've often had to do BISS adjustments after TB related jobs. Turn it clockwise to see if the idle drops. Otherwise retrace your steps and triple check all your newly replaced vacuum hoses and their clamps.

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Only vacuum hose I replaced was the one to the brake booster some said a check valve

Vegas smith said:

I've never heard of someone having an idle of 5k that wasn't a throttle cable issue but this sounds like a huge vacuum leak.

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I block the fiav now the rpm bounces from 3000 to 2000 with the cable not hooked up

Did you touch the boss screw at all? It could be trying to learn idle and your isc is bottoming out.

Turbodhi said:

Did you touch the boss screw at all? It could be trying to learn idle and your isc is bottoming out.

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Where is that the Phillips Screw on the top

You need to do a search.

DsmKhan said:

Where is that the Phillips Screw on the top

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Base Idle Set Screw (BISS) Location:

DsmKhan said:

Where is that the Phillips Screw on the top

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Biss screw

It is a Philips head PLASTIC SCREW with an Oring on it. It is VERY FRAGILE. If you move it, you should count the EXACT AMOUNT you move it so you can return it to that position after you fix its problem.
I would tell you to turn it all the way IN and count exactly how many turns and partial turns it takes but it is so delicate that I am afraid you would damage it.
SO DON'T DO IT.
But it would shut off the idle air for the TB and normally would kill the motor if the ISC is unplugged. This is more complicated then I make it sound so it is for those that have tinkered on these cars for a while. It is for diagnostic purposes only.
Have you performed a Boost Leak Test yet?
Also, verify that the BISS Screw has not fallen OUT while you were trying to service it.
Just tips.

Update I found the Big vacuum leak the car has a jm fab intake I put a
EXTREME PSI HEAT BARRIER INTAKE MANIFOLD GASKET Didn’t realize this gasket is for a stock intake which is to say smaller ports that’s where it was leaking crazy shit

Well that is good news. Glad you got it figured out. Does it idle correctly now?

1990TSIAWDTALON said:

Well that is good news. Glad you got it figured out. Does it idle correctly now?

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Trying to adjust the idle better might need to get it tuned

Looking to put a aem air fuel system where is the best place to put the sensor at on the exhaust

Somewhere after the turbo.

Last person that had crazy symptoms had a massive intake manifold leak as well. This should be an audible leak with any BLT.
??