greetings. the code says iacv failing. idle very low. 96 subaru outback. 315k miles and still rambling along. iacv failure has added a bit of rumbling, as well. question, please. i watched a video from wisconsin. the fellow revved the engine to 2k rpm, then removed a hose and poured in a bottle of sea foam slowly. lots of smoke. ten minutes later the engine seemed to be running very well.
can anyone else recommend this method? it seems a lot easier than manually taking things apart and a replacement for my legacy at autozone seems to be about $400! thanks for any help with the cleaning of iacv question and best wishes.
