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Old 03-26-2010, 11:21 AM   #1
supraireland
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Question Aftermarket Intake on n/a-t Question?

Hi, I am sorry if this is answered somewhere, but I've had a good search and can't see it, so here goes.

I have a 95 supra Na-t and I am looking at changing the intake and throttle body to the tt style aftermarket one, however I have noticed that the standard throttle body has 2 sensors (Throttle position sensor and Idle control I believe) and the aftermarket throttle bodies all seem to have a fitting for only 1 sensor (the TPS). I was wondering has anyone done this mod or knows how to overcome the problem?

I am not too clever with the inner workings of engines so maybe the idle control is bypassed/ replaced or something??

Thank you in advance for any help,

Jason
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Old 03-27-2010, 08:45 AM   #2
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Quote:
Originally Posted by supraireland View Post
Hi, I am sorry if this is answered somewhere, but I've had a good search and can't see it, so here goes.

I have a 95 supra Na-t and I am looking at changing the intake and throttle body to the tt style aftermarket one, however I have noticed that the standard throttle body has 2 sensors (Throttle position sensor and Idle control I believe) and the aftermarket throttle bodies all seem to have a fitting for only 1 sensor (the TPS). I was wondering has anyone done this mod or knows how to overcome the problem?

I am not too clever with the inner workings of engines so maybe the idle control is bypassed/ replaced or something??

Thank you in advance for any help,

Jason
On a 2jz-gTe, the second sensor on the 2jz-gte throttle body is for the secondary throttle plate...which is assocated with the oem traction control system. There are kits available to remove the secondary throttle plate and the entire traction control system, since it is somewhat unsophisticated in its operation. Many prefer to drive without it or replace it with something more feature-rich like RaceLogic. You could use one of the trac-elimination kits to remove the secondary throttle plate and there would be no need for the secondary TPS.
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Last edited by pwpanas; 03-27-2010 at 04:29 PM.
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Old 03-27-2010, 11:39 AM   #3
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Just to confirm, its a GE, not a GTE, are they the same? A mechanic told me it was an idle control valve, and when he disconnected it the car started revving up and down on its own.

http://i997.photobucket.com/albums/a.../front-top.jpg

This is a picture i borrowed, it the sensor on the left nearest the dizzy.
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Old 03-27-2010, 04:27 PM   #4
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Originally Posted by supraireland View Post
Just to confirm, its a GE, not a GTE, are they the same? A mechanic told me it was an idle control valve, and when he disconnected it the car started revving up and down on its own.

http://i997.photobucket.com/albums/a.../front-top.jpg

This is a picture i borrowed, it the sensor on the left nearest the dizzy.
No, they're not the same.

The throttle body in your picture is not from a 2jz-gTe.
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Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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Old 03-27-2010, 08:03 PM   #5
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Yes, perhaps there is a misunderstanding, I have a Na-t 2jz-ge not a gte and I want to fit the tt style aftermarket intake for the GE, With the 90 mm throttle body but the sensor? I dont know what to do with it? when disconnected car revs up and down uncontrollably.
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Old 03-28-2010, 01:12 AM   #6
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Originally Posted by supraireland View Post
Yes, perhaps there is a misunderstanding, I have a Na-t 2jz-ge not a gte and I want to fit the tt style aftermarket intake for the GE, With the 90 mm throttle body but the sensor? I dont know what to do with it? when disconnected car revs up and down uncontrollably.
Where did you get the 90mm throttle body? Neither the 2jz-gTe nor the 2jz-ge have a 90mm throttle body...

The erratic revving may be a problem with your IAC valve/motor or a vacuum leak...
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Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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