J37 throttle high cold idle

FlashPro questions & answers specific to the 2007-2008 US TSX
Post Reply
Posts: 288
Joined: Mon Dec 15, 2003 1:51 pm
Location: Athens, Greece

J37 throttle high cold idle

Post by CivicVTi »

I have installed a J37 throttle on my 06 supercharged TSX. When hot, everything works fine (idles at 800rpm no problem) but cold idle is very high, reaching fuel cut. I tried ignition retard when cold but this does not seem to work as intended. I guess stock ECU uses another throttle MAP when cold and even a small angle change results in high flow changes with this TB. Any workarounds Hondata?
User avatar
Site Admin
Posts: 9609
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA

Re: J37 throttle high cold idle

Post by Hondata »

The throttle flows more at small openings so the ECU doesn't relate idle correctly. Try the throttle learn procedure after reflashing because that may be necessary.
Also see this post: viewtopic.php?f=29&t=18527
Post Reply