Just to echo what everyone else is saying, my FRS does the same thing, with the AC on at idle. It almost feels like the engine will die sometimes the RPMs drop so low. I’ve gotten used to it. The twins have a ton of “character” that’s for sure. [emoji28]


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>my17 in europe are the worst
also ots v4 based on euro tune have quite a shitty idle

Will the idle continue to dip after you come to a stop? Mine mostly isn't even when I'm coming to a stop, rather when I have been sitting still for a couple seconds.

I raised my idle to 950rpm and the a/c doesn't bother the car anymore. Even a clutch in from 6000rpm letting it sink all the way down, it doesn't stumbled to catch. It hesitates a little when idling, but nothing like the stumble it had when the idle rpm were at 650-700

In 6 years my engine has stalled just once because of this. Stopped at a traffic light, the idle dipped really low and the engine stalled. Started the car right up and had a CEL. Oh shit! My car is broken!
Went home and cleared the code with OFT. I forget what the code was. I think it was something about the vacuum.
Turns out it was just a hiccup and hasn't happened again. (Hasn't stalled, that is, it still dips all the time.)

Sorry for the noob question, but what does this mean?

Turn off the radio and listen. When the car is idling and you hear a click, that click is the AC compressor turning on. The idle dip always coincides with that click.

Is the idle something that can be set using OFT?

Yea I raised mine to 850 and it helped a ton.

Does the A/C compressor run even when the HVAC controls are turned all the way off by some chance? I remember reading somewhere that the compressor runs even when the A/C button is turned off, but I don't know how true that is.

In the video link I posted in the OP, I turned all the HVAC controls off to try an make sure the A/C was not causing the problem, plus I can't the click of the compressor kicking on. (maybe its extremely quiet?)

I agree, I am not a fan of the OTS v4 tunes at all. Mine tune is still based on the early stuff.

600 RPM idle is too low. I bumped mine to 950 as well since coming off the track, or driving the car on a sprited back road oil pressure was extremely low.

The compressor also turns on if you are in defrost mode.

In the tune, definitely

i successfully put 760rpm as hot idle in my tunes, but the real very rock steady is at 900rpm