I got OWNED lastnight!lol - Toyota Nation Forum : Toyota Car and Truck Forums

clem · 03-05-2006, 10:09 AM

hey guys lastnight i got defeated by a friend who owns a 94 toyota starlet with a 1.3 turbo engine(yes its a 1.3) he has a turbo upgrade and a computer upgrade and a few other mods all were bolt ons! okay this is how it went the first race i beat him off the line leaving him 2 cars behind me btw my car has a nasty exhaust leak and the car wasnt going over 7psi(i dont know why) by third gear he ran pass me beating me by a fender! The second race the same thing happened but he ended up beating me by a car length! i know that my car could beat his car but i really need to get the boost situatioin fix along with my exhaust leak! so now i have a guy in town sayin he owned a 3sgte

! i want you guys to tell me what u think the problem is why the boost wouldnt go over 7psi sometimes it does and sometimes it doesnt! do you guys have any suggestions what it is ?

JekylandHyde · 03-05-2006, 11:03 AM

http://www.jekylhyderacing.com/knock.htm

BDSL · 03-05-2006, 12:16 PM

It can be your t-vsv.

clem · 03-05-2006, 04:54 PM

what is a t-vsv and why would my knock sensor sense a tremendous knock at 10 psi ? i took out the mbc and put everything back stock and its doing it at stock settings wtf is the problem

BDSL · 03-05-2006, 05:13 PM

t-vsv will toggle to low-boost mode if engine requirements are not met:
- water temperature too low
- ambient temp too low

if knock sensor detects knock, timing is retarded.

clem · 03-05-2006, 06:38 PM

if i was to buy a new knock sensor would it solve my problem ?

BDSL · 03-05-2006, 08:09 PM

No, a new knock sensor won't fix anything. Your knock sensor isn't broken.

Do a tune up. And un-plug the t-vsv electrical connector.

clem · 03-06-2006, 07:47 AM

where is it located?

clem · 03-06-2006, 02:54 PM

can someone help me ?

mechanix0889 · 03-06-2006, 03:29 PM

fix the exhaust leak without exhuast pressure the turbo wont spool up to full potential

clem · 03-06-2006, 04:34 PM

dude thanks for the advice on the exhaust but i wanna know where the electric control is for the tvsv

BDSL · 03-06-2006, 10:38 PM

Its right under the engine area. You will find more info on mr2oc.com

clem · 03-07-2006, 12:58 PM

does anyone have a diagram or a picture of the tvsv?

ST185 · 03-08-2006, 09:14 AM

Do you have a boost controller.
(I guess, yes)
Did you remove the T-VSV when install the controller?

7 psi (wastegate spring setting) is not low. It's normal boost.
T-VSV actually allows boosting above ~7psi by bleeding air out of the actuator.
In your case, it didn't boost more than 7 psi because the T-VSV did not allow it.
Unsuitable condition can directly and indirectly causes this.
(too high temp, too low temp, excessive knock, etc..)

clem · 03-08-2006, 10:33 AM

no i didnt move the tvsv! the question that am asking is how do you dis-connect it ?