Mike B Posted August 19, 2012 Share Posted August 19, 2012 Hi all, Just got the vvti throttle sorted courtesy of Ryan an the syvecs ecu and the little bugger is back to defy me again! Car ran faultlessly since, bar a few self induced niggles, but last week it started and sat at 4k on idle. Since then I could not get her to idle under 4k.... I plugged the syvecs software in and the voltage coming in to the tps feed was 4.5v as idle, which (I could be wrong) seem high, but when I blip the throttle the voltage only climbs when I get the pedal past a certain point, and when I release it does not come back to 4.5v, infact it settles back higher, at 4.9,& then 5.2... As I understand on the vvti bodies there is a physical side and an electronic side. The electronic side mirrors the physical side. I'm not sure on this, (depending on what you say I may ask Ryan) but the syvecs takes a feed from the vvti throttle from the sensor that measures the physical, then sends a signal back to the body's electronic side to open the throttle to the desired amount. Could it be my sensor that is faulty? That's where my logic is taking me... If so, does anyone have any idea where it is on the vvti body and if it is swappable? Thx all Quote Link to comment Share on other sites More sharing options...
Mike B Posted August 19, 2012 Author Share Posted August 19, 2012 I should also say that I had a good look through the forum for the tps diagram or the vvt diagram and could not find it.. Nor anything that resembled this problem exactly... Quote Link to comment Share on other sites More sharing options...
muzzytt Posted February 10, 2013 Share Posted February 10, 2013 Im no expert but i am converting my throttle to permanent physical control with a conversion kit from japan. this will give you 99% control the only thing the ecu controls after this uprgade is the idle speed only ! I have a thread on this follow the link http://www.supraforums.com.au/forum/a80-mkiv-discussion/83895-vvt-i-throttle-control-override-kit.html Quote Link to comment Share on other sites More sharing options...
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