Hawwy Posted July 13, 2013 Share Posted July 13, 2013 When engines warm why does the idle start going up and down , but perfect when cold Quote Link to post Share on other sites
Socks Posted July 13, 2013 Share Posted July 13, 2013 The idle should not change... The only change should be... Slightly higher idle when cold that settles down when temps rise... It shouldn't fluctuate... Quote Link to post Share on other sites
Hawwy Posted July 13, 2013 Author Share Posted July 13, 2013 I know , what do you think would be causing this. Quote Link to post Share on other sites
Socks Posted July 13, 2013 Share Posted July 13, 2013 ICV and TPS can cause this... Quote Link to post Share on other sites
Turk Posted November 3, 2013 Share Posted November 3, 2013 Ive got same problem, my car idles at 750 and fluctuates. Ive cleaned the idle control valve and didnt change a thing. How can i check if my tps isnt working properly? Quote Link to post Share on other sites
JayJ Posted November 4, 2013 Share Posted November 4, 2013 (edited) How to set up TPS: http://www.toyotagtturbo.com/forums/showwiki.php?title=TPS+throttle+position+sensor+set+up+procedure Edited November 4, 2013 by JayJ Quote Link to post Share on other sites
Turk Posted November 4, 2013 Share Posted November 4, 2013 Thanks buddy will let you know how it ends up Quote Link to post Share on other sites
JayJ Posted November 4, 2013 Share Posted November 4, 2013 When engines warm why does the idle start going up and down , but perfect when cold Temp sensor problem, plugs causing missfire, vacuum leak? Quote Link to post Share on other sites
Turk Posted November 4, 2013 Share Posted November 4, 2013 I think ive got a vaccum leak. Gonna do a leak test first. Ive changed plugs recently no difference. Mighy change temp sensor because its cheap!!! Quote Link to post Share on other sites
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