Eeek! 0psi of Boost! Can't find problem! - Page 3 - 3000GT/Stealth International Message Center

Frosty4x4 · 06-04-2008, 11:52 AM

I just had a dealer replace my rear exhaust manifold. I haven't been back and seen the old one yet but I heard a blowby on the drivers side and could only get about 4 psi. They also said the rear turbo gasket was leaking. Sounded like it was difficult to get to the manifold as the intake had to be pulled also.

venetrex · 06-04-2008, 02:20 PM

Do you have cat's on your car, it is possible that that one or both of your catalytic converters is clogged, try removing the downpipe and take it for a drive.

3k2bar · 06-06-2008, 11:01 AM

Hey guys! thanks a lot for the suggestions!

I have a single highflow cat off the downpipes,thats interesting! maybe it is plugged up, I'm hoping I can take it apart this weekened and see if those turbos will spool!

I checked the front turbo and it spun really smoothly and didn't seem to have much play.

Clogged cat, my next tackle!

1Forest1 · 06-06-2008, 11:19 AM

Could you borrow or buy a Datalogger?
It would be a good help to know how much air is coming into the system.
-If you are seeing the proper Hz (CFM going through the MAS), but are only getting 1psi, you know the air is escaping somewhere between the MAS and the intake manifold.
- If you are only getting half the proper amount of air coming in to begin with, then you know there is a problem with the turbos. They arent sucking in air like they should.

Just looked to see what gen you have, and read your name... going to have to change that to 3k0-bar

3k2bar · 06-21-2008, 02:58 PM

Whoever Suggested clogged cat is the WINNAA!!!!
OMG FINALLY BOOST! I took the exhaust off today and made 14psi!! HURRAY!! I guess the cat is clogged! gonna open it up and gut it, OMG I've been at this for 4 months daily driving it. It sure seems faster now

Thanks for everyones help!! what a strange problem this was!!

Frosty4x4 · 06-23-2008, 10:23 AM

Do you have a stock boost gauge? I did the free mod and I go to 14+ psi. Runs and sounds great but I don't want to leave any parts on the road!!

venetrex · 06-23-2008, 10:37 AM

You are welcome!
Good luck

06-04-2008, 11:52 AM	#21 (permalink)
Frosty4x4 New User - Please be kind Join Date: Sep 2005 Location: Fort Worth Texas Drives: 91 3000 GT VR4 Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! I just had a dealer replace my rear exhaust manifold. I haven't been back and seen the old one yet but I heard a blowby on the drivers side and could only get about 4 psi. They also said the rear turbo gasket was leaking. Sounded like it was difficult to get to the manifold as the intake had to be pulled also.

06-04-2008, 02:20 PM	#22 (permalink)
venetrex Someone else's mistakes Join Date: Jan 2008 Location: CT Drives: 1992 3000GT VR4 Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! Do you have cat's on your car, it is possible that that one or both of your catalytic converters is clogged, try removing the downpipe and take it for a drive. __________________ DR650R's, supra fuel pump hotwired and aem fuel pressure regulator with bob beck adapter, addicted performance front mount intercooler and piping, ceramin coated inside and out, ebay knockoff DN headers, cusom stillen downpipe, Borla catback, precision turbo 550cc injectors, RPS MAX series clutch, street disc, and RPS segmented aluminum flywheel, 3sx braided stainless turbo feed and return lines, 3sx braided clutch line, fidanza adjustable cam gears, arc2 fuel controller with ford MAS, greddy E-manage blue for fine tuning and timind control, Greddy profec E-01 for boost control, AEM widemand O2, arm-1 narrow band o2, autometer boost gauge, HKS ssqv with custom recirc adapter, 3sx fuel rail adapter.

06-06-2008, 11:01 AM	#23 (permalink)
3k2bar Minister of Happiness Join Date: Apr 2002 Location: Calgary, Alberta Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! Hey guys! thanks a lot for the suggestions! I have a single highflow cat off the downpipes,thats interesting! maybe it is plugged up, I'm hoping I can take it apart this weekened and see if those turbos will spool! I checked the front turbo and it spun really smoothly and didn't seem to have much play. Clogged cat, my next tackle! __________________ 1993 3000GT VR-4 14psi on 9b's 1993 RHD Toyota Celsior 4.0 V8 1990 Toyota Celica GTS

06-06-2008, 11:19 AM	#24 (permalink)
1Forest1 Isnt this a CAR SITE? Join Date: Jun 2006 Trader Rating: (1)	Re: Eeek! 0psi of Boost! Can't find problem! Could you borrow or buy a Datalogger? It would be a good help to know how much air is coming into the system. -If you are seeing the proper Hz (CFM going through the MAS), but are only getting 1psi, you know the air is escaping somewhere between the MAS and the intake manifold. - If you are only getting half the proper amount of air coming in to begin with, then you know there is a problem with the turbos. They arent sucking in air like they should. Just looked to see what gen you have, and read your name... going to have to change that to 3k0-bar __________________ Public Stealth & 3000GT Picture Database - 1,500+ pictures. Thanks to everyone who contributed.

06-21-2008, 02:58 PM	#25 (permalink)
3k2bar Minister of Happiness Join Date: Apr 2002 Location: Calgary, Alberta Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! Whoever Suggested clogged cat is the WINNAA!!!! OMG FINALLY BOOST! I took the exhaust off today and made 14psi!! HURRAY!! I guess the cat is clogged! gonna open it up and gut it, OMG I've been at this for 4 months daily driving it. It sure seems faster now Thanks for everyones help!! what a strange problem this was!!

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06-23-2008, 10:23 AM	#26 (permalink)
Frosty4x4 New User - Please be kind Join Date: Sep 2005 Location: Fort Worth Texas Drives: 91 3000 GT VR4 Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! Do you have a stock boost gauge? I did the free mod and I go to 14+ psi. Runs and sounds great but I don't want to leave any parts on the road!!

06-23-2008, 10:37 AM	#27 (permalink)
venetrex Someone else's mistakes Join Date: Jan 2008 Location: CT Drives: 1992 3000GT VR4 Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! You are welcome! Good luck