setting idle on s5 jspec T2
05-01-07, 09:01 PM
#1
2jz'd fc
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setting idle on s5 jspec T2
ok so how do i change the idle on a jspec t2 cause the hyans manual says to use the screw in the bac but the is no screw on the jspec one. anybody know how, could be a dumb quesition but i have no clue. thanks
05-01-07, 09:38 PM
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Do you have the screw on top of the throttle body?
http://howto.globalvicinity.com/gv_w...i=61&co=1&vi=1
edit: you'll also want to set the TPS while you're at it, search for "TPS" on that site and it'll get you there. Or FSM.
http://howto.globalvicinity.com/gv_w...i=61&co=1&vi=1
edit: you'll also want to set the TPS while you're at it, search for "TPS" on that site and it'll get you there. Or FSM.
05-01-07, 11:36 PM
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2jz'd fc
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thats a good site but it says nothing about TURBO cars, and no there is no screw on the throttle body because this is not a NA which is why im in need of some help lol
05-02-07, 01:46 AM
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For reasons I've never been able to figure out, J-specs 13BT's have no easy way to set idle speed like US models do. I use a temporary intercooler replacement pipe to allow me to reach the throttle stop screw on the TB while the engine's idling. This is silly really, because it means you need to reset the TPS at the same time, and this messes up the ideal balance between primary throttle position and TPS rest position, which hurts drivability. I'm sure there has to be a better way, but until I can find a copy of the Japanese FSM, and then learn Japanese, I don't know what it is.
The best solution for you guys is to use a US-spec BAC valve complete with adjustable bypass screw.
The best solution for you guys is to use a US-spec BAC valve complete with adjustable bypass screw.
05-02-07, 03:17 AM
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Originally Posted by NZConvertible
For reasons I've never been able to figure out, J-specs 13BT's have no easy way to set idle speed like US models do. I use a temporary intercooler replacement pipe to allow me to reach the throttle stop screw on the TB while the engine's idling. This is silly really, because it means you need to reset the TPS at the same time, and this messes up the ideal balance between primary throttle position and TPS rest position, which hurts drivability. I'm sure there has to be a better way, but until I can find a copy of the Japanese FSM, and then learn Japanese, I don't know what it is.
The best solution for you guys is to use a US-spec BAC valve complete with adjustable bypass screw.
The best solution for you guys is to use a US-spec BAC valve complete with adjustable bypass screw.
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