Eeek! 0psi of Boost! Can't find problem! - Page 2 - 3000GT/Stealth International Message Center

venetrex · 05-12-2008, 05:48 PM

I 2nd that, one bad turbo will cause the one good turbo to brow it boost thru the other and into the exhaust. Do you hear the spool up at all??? You boost controller solonoid up must be removed for more testing.

3k2bar · 05-12-2008, 07:21 PM

I disconnected the wastegates and no dice, still making 1psi or just 0. I can hear something spooling and whooshy turbo noises, but they aren't very loud.

I've done leak testing on three differnet weekends, always fixing a little leak here, or a vacuum line there, but never an intercooler or rear pipe o-ring or anything like that.

I checked wastegate operation last weekend, front only moved a bit (rusty) but i could hear the rear flopping open and closed.

I need to get in there to inspect the rear turbo asap it seems.

venik · 05-12-2008, 07:54 PM

I bet the air is going backwards through the blown turbo, and thats why you don't find anything while pressure testing.

3k2bar · 05-13-2008, 10:37 AM

Quote:

I bet the air is going backwards through the blown turbo, and thats why you don't find anything while pressure testing.

Its the strangest thing. I had my Supra Turbo for a long time, and never had a problem like this. You would think that having 1psi I'd have a boost leak the size of a small moon, but not so.

I'm going to have to dig in and check that rear turbo asap!

3k2bar · 06-01-2008, 11:58 AM

So I finally pulled off the rear intake pipe (its so tight back there, stupid design) and the turbo spins over smoothly if I move it with my finger.

So crapola, where does this leave me? I hear a lot of hissing from the left side of the car when I drive, is it possible the intercooler is leaking somehow and I can't find it on pressure testing?

I'm befuddled here

3k2bar · 06-03-2008, 11:55 AM

I did more boost leak testing. Watching the boost gauge it would eventually rise to 16psi with 20psi at the compressor regulator. Checked the intercoolers carefully, looked for leaks, can't find any, little ones behind manifold but thats it.

Both turbos turn over smoothly by hand, what the hell is wrong with this thing? Its been months now I've been trying to figure it out and driving it N/A style to work!

venetrex · 06-03-2008, 01:30 PM

You are not alone with this, my car did this, drove with 0psi and then one day something popped and it has been good ever since. Jeff Lucius from stealth316.com observed this same trouble and never found the cause. How long have you been driving it like this for???

3k2bar · 06-04-2008, 11:01 AM

I'm glad I'm not the only one with this! I've been driving daily with this problem for almost 3 months now. I've been wondering if the rear exhaust manifold is jammed or something, I read a thread where a fella had the gasket jam up in the manifold.

I drive my 2.2 Celica and it feels So fast!

I've searched every thread I could think off for the problem, and I'm plumb out of ideas. I was thinking maybe a big manifold leak on the intake, but it doesn't seem to make that much noise. I can hear a smallish sounding leak from behind the manifold, I figure its a vacuum line of some kind leaking a bit, but nothing large enough to jusitfy it.

I was thinking of buying some 13g's, when I get my Celica back (on loan to my friend until his supra starts running) pulling it all open, checking the wastegates and every inch of the IC piping. I hear hissing when I drive, and tiny BOV noises, but its just not making it too the motor somehow!

It definatly was progressive in the boost loss though, 9psi, then 6psi, then 4 then 2 then 1 now 0psi, what does it all mean!

lawdogg · 06-04-2008, 11:05 AM

Pull the lines off your wastegates, plug the nipple on the y pipe. Take off your catback. Let her rip and see what happens.

Gray Haze · 06-04-2008, 11:39 AM

Check the front turbo?

05-12-2008, 05:48 PM	#11 (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! I 2nd that, one bad turbo will cause the one good turbo to brow it boost thru the other and into the exhaust. Do you hear the spool up at all??? You boost controller solonoid up must be removed for more testing. __________________ 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.

05-12-2008, 07:21 PM	#12 (permalink)
3k2bar Minister of Happiness Join Date: Apr 2002 Location: Calgary, Alberta Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! I disconnected the wastegates and no dice, still making 1psi or just 0. I can hear something spooling and whooshy turbo noises, but they aren't very loud. I've done leak testing on three differnet weekends, always fixing a little leak here, or a vacuum line there, but never an intercooler or rear pipe o-ring or anything like that. I checked wastegate operation last weekend, front only moved a bit (rusty) but i could hear the rear flopping open and closed. I need to get in there to inspect the rear turbo asap it seems. __________________ 1993 3000GT VR-4 new Front end Waiting for Paint, some decent mods 1990 Toyota Celica GTS A real great Handling, fun machine!

05-12-2008, 07:54 PM	#13 (permalink)
venik Forum Member Join Date: Feb 2006 Location: Santa Barbara, CA Drives: vr-4 Trader Rating: (4)	Re: Eeek! 0psi of Boost! Can't find problem! I bet the air is going backwards through the blown turbo, and thats why you don't find anything while pressure testing. __________________ 1993 Pearl White VR-4 twin 16g

06-01-2008, 11:58 AM	#15 (permalink)
3k2bar Minister of Happiness Join Date: Apr 2002 Location: Calgary, Alberta Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! So I finally pulled off the rear intake pipe (its so tight back there, stupid design) and the turbo spins over smoothly if I move it with my finger. So crapola, where does this leave me? I hear a lot of hissing from the left side of the car when I drive, is it possible the intercooler is leaking somehow and I can't find it on pressure testing? I'm befuddled here

06-03-2008, 11:55 AM	#16 (permalink)
3k2bar Minister of Happiness Join Date: Apr 2002 Location: Calgary, Alberta Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! I did more boost leak testing. Watching the boost gauge it would eventually rise to 16psi with 20psi at the compressor regulator. Checked the intercoolers carefully, looked for leaks, can't find any, little ones behind manifold but thats it. Both turbos turn over smoothly by hand, what the hell is wrong with this thing? Its been months now I've been trying to figure it out and driving it N/A style to work!

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06-03-2008, 01:30 PM	#17 (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 not alone with this, my car did this, drove with 0psi and then one day something popped and it has been good ever since. Jeff Lucius from stealth316.com observed this same trouble and never found the cause. How long have you been driving it like this for???

06-04-2008, 11:01 AM	#18 (permalink)
3k2bar Minister of Happiness Join Date: Apr 2002 Location: Calgary, Alberta Trader Rating: (0)	Re: Eeek! 0psi of Boost! Can't find problem! I'm glad I'm not the only one with this! I've been driving daily with this problem for almost 3 months now. I've been wondering if the rear exhaust manifold is jammed or something, I read a thread where a fella had the gasket jam up in the manifold. I drive my 2.2 Celica and it feels So fast! I've searched every thread I could think off for the problem, and I'm plumb out of ideas. I was thinking maybe a big manifold leak on the intake, but it doesn't seem to make that much noise. I can hear a smallish sounding leak from behind the manifold, I figure its a vacuum line of some kind leaking a bit, but nothing large enough to jusitfy it. I was thinking of buying some 13g's, when I get my Celica back (on loan to my friend until his supra starts running) pulling it all open, checking the wastegates and every inch of the IC piping. I hear hissing when I drive, and tiny BOV noises, but its just not making it too the motor somehow! It definatly was progressive in the boost loss though, 9psi, then 6psi, then 4 then 2 then 1 now 0psi, what does it all mean!

06-04-2008, 11:05 AM	#19 (permalink)
lawdogg Here for the tuna. Join Date: Jul 2003 Location: Williamsport, PA Drives: The Speed Limit Trader Rating: (60)	Re: Eeek! 0psi of Boost! Can't find problem! Pull the lines off your wastegates, plug the nipple on the y pipe. Take off your catback. Let her rip and see what happens. __________________ 2002 WJ -- 1994 VR-4 -- --Canon Rebel XTi Green Cars FTW

06-04-2008, 11:39 AM	#20 (permalink)
Gray Haze Master Of Disaster Join Date: Mar 2002 Location: Fort Worth, Texas Drives: 3S's Since Feb 2002. Trader Rating: (25)	Re: Eeek! 0psi of Boost! Can't find problem! Check the front turbo? __________________ 1992 3000GT VR-4 #15 of 24. The ORIGINAL Sandstone Gray '99 Conversion. A slow strangle with your feet on the floor. www.3stech.org - Now with 100% less invite codes! Free Registration!