 Boosting only 7psi max, thinking tvsv is the culprit? |
 Apr 30, 2008 - 2:28 PM
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Enthusiast  Joined May 30, '05 From MN Currently Offline Reputation: 8 (100%)  |
Hi,
I have a boosting problem. I'm only boosting 7psi max. This all started with a leaking turbo to downpipe gasket ( looks like ebay type) that was making the car loud. So I took it out and replaced it with one I made DIY as a temporary one since the toyota one I ordered was taking a while to get. Since the replacement I'm unable to boost more than 7psi max. Ok so I read a lot the last few days and thought: boost leak,gasket/ebay downpipe is making wastegate flapper stuck. Checked clamps, hoses no leaks anywhere. Finally, the toyota gasket came in, but before I installed it, I ground it down to match the OEM gasket(don't wanna have any reason for taking it down again). Installed everything back, but still can't boost past 7psi. So next I unplugged the hose going to the tvsv and run the car, got it to 11psi and I could hear the turbo working hard so I didn't want to push it to overboost. I did not feel the car pulling timing on me. Next, I plugged the wastegate actuator outlet to tvsv shut, went for a drive, all I got was 7psi! which is what it should be. Now I'm suspecting either ECU is stuck in low boost mode or the TVSV is bad or could this still be boost leak? I have the boost leak tester in the works. I have checked my BPV for leaks and even took it out of the picture for simplicity sake still no luck. I need all the help/input I can get. Thanks. -------------------- 3sgteing.
..burns twice as bright, lasts half as long. "The weight of the world is love. Under the burden of solitude, under the burden of dissatisfaction." -Allen Ginsberg- |
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Apr 30, 2008 - 6:43 PM
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 Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
QUOTE I tell you, there is such a big difference between 7psi and 10psi after driving at 7psi for about a week. HA . Get this and find out how fast the car can really be... http://www.twosrus.com/catalog/product_inf...3bdf64e711e3855 -------------------- 15PSI - 30MPG - Megasquirt Tuned
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Apr 30, 2008 - 10:25 PM
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Enthusiast Joined May 30, '05 From MN Currently Offline Reputation: 8 (100%) |
QUOTE(lagos @ Apr 30, 2008 - 6:43 PM) [snapback]669694[/snapback] QUOTE I tell you, there is such a big difference between 7psi and 10psi after driving at 7psi for about a week. HA . Get this and find out how fast the car can really be... http://www.twosrus.com/catalog/product_inf...3bdf64e711e3855 Ahh, yes the MBC. I think I would soon break down and buy it. I'm at a point where I feel comfortable with working on my car and now that the tvsv mod is giving me problems. -------------------- 3sgteing.
..burns twice as bright, lasts half as long. "The weight of the world is love. Under the burden of solitude, under the burden of dissatisfaction." -Allen Ginsberg- |
Posts in this topic
malecrod Boosting only 7psi max Apr 30, 2008 - 2:28 PM
robdrummer weird, after i had a heating issue the other day i... Apr 30, 2008 - 2:34 PM lagos 1. Check the ecu for codes. Something like a blown... Apr 30, 2008 - 3:04 PM
malecrod QUOTE(lagos @ Apr 30, 2008 - 3:04 PM... Apr 30, 2008 - 3:28 PM DEATH Dude that was awesome - many times I've though... Apr 30, 2008 - 3:15 PM lagos QUOTECan you explain briefly how the AFM can be do... Apr 30, 2008 - 3:46 PM robdrummer Fixed thanks guys Apr 30, 2008 - 3:48 PM lagos QUOTE(robdrummer @ Apr 30, 2008 - 4... Apr 30, 2008 - 3:49 PM malecrod Problem fixed! Ok, so I went to test the actu... Apr 30, 2008 - 6:33 PM robdrummer the problem was that one of the silicone connector... May 1, 2008 - 8:01 AM lagos QUOTE(robdrummer @ May 1, 2008 - 9:0... May 1, 2008 - 11:42 AM |
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