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My car does it as well with the a/c or the defogger going.
i figure if it ever becomes an issue then its time to look at the IACV or do the dirty thing and just set idle to like 700 or 1000....
I had a story about that
*gets my Humrz glasses on*
So way back when I had a 2.5RS and we had done some serious modifications to the head, cam and intake and exhaust on the car, to the point i even had a special throttle body made. Now this was back when throttles had mechanical pulleys in them and return springs. wel my ported throttle body was a different unit and housing than was on the old EJ251 motor ( single slammer. I loved the valve sizes on em) it didnt have an idler control valve
So it became an issue with the ecu, I think we used a vipec V44 which was an off shoot of the Link G4 units. and setting the Idle with the accessories going like ac or defogger or even radio. Since the Throttle body was sort of, what it was we did the old hot rod thing and drilled a hole in it to "mechanically set" the idle.
now with our fancy new drive by wire/sealed units, your computer has an expected idle rpm and indicated and adjusts the throttle to match.
My old S13 had a set screw for a hard throttle stop, but it still had an IACV too. you could mess with it alot.
Anyways we drilled it out and started it up till it got hot and figured to not stall the car out while the ac was going full blast we had assumed a mechanical idle set at like 800 rpm, but we miss judged the hole and shoved a 5/64th bit to set idle, and it gave the car a 1000 rpm idle.
good think she spun up to 7600, but man it was funny sitting at stop lights and literally slipping the clutch cause you couldnt go any lower. Never had an issue with the ac though
I miss that car
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