1999 Subaru Forester hunting idle issue

[@iamalexsun]

same issue on mine. did you ever figure out the problem?

[@Maleekus]

my corolla did this, it was the throttle body. check engine light came on though

[@davidmg4216]

Have you tried replacing or cleaning the IAC motor??

[@cory8791]

Clean the throttle body?

[@mitm19]

What happens it you unplug the iac? Is the map or maf seeing weird values if you look at live data?

[@justhes]

@@mitm19 I haven’t tried that. The only weird thing I see in live data is map reads 8 inhg which I’m not sure is correct.

[@mitm19]

@@justhes Maybe try unplugging the map and see if the behavior changes