Idle is now close to perfect with cold and half-warm engine. Also previous RPM undershooting (RPM falls down to ~500rpm when releasing throttle rapidly from high RPM) problems are gone. The trick was to set IAC ref position table a few steps over needed values and limiting iac_integral_limit_dec to very small value.

With warm engine there is still a problem with rapidly falling RPM. Ref position table ends to 77C, does this affect to all temperatures above 77C?

07.06.2005