
07-29-2011, 08:32 AM
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Join Date: Jul 2004
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Sounds like the tuner will probably need to adjust the throttle follower tables. This determines how fast the IAC is allowed to shut down when the throttle is closed. Too fast will cause stalling or jumps in idle speed as the IAC catches the engine when the rpms drop fast. May also need to tweak how fast the IAC reacts, slow it down a bit. A good tuner will have that sorted out no problem, as well as setting your idle rpm.
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