Miata Turbo Forum - Boost cars, acquire cats.

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Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)

- General Miata Chat (https://www.miataturbo.net/general-miata-chat-9/)

- - Urgent! Engine idling oddly (https://www.miataturbo.net/general-miata-chat-9/urgent-engine-idling-oddly-74042/)

FRT_Fun

07-23-2013 09:23 AM

Video would be great.

peterwho

07-23-2013 09:49 AM

Yeah didnt know how else to describe it, i might get a video if i can be bothered lol. Yeah gaskets replaced with a little bit of high temp sealant too. So on top of the surging revs, at idle its stuck at around 1.2 to 1.5k even after adjusting the idle air valve, cant get it below 1k. In more detail the idling is just high, no rough idling or misfire etc

Braineack

07-23-2013 09:50 AM

yeah, you have a vacuum leak and the ISC can't lower the idle enough to compensate for the failure.

peterwho

07-23-2013 10:58 AM

Quote:

Originally Posted by Braineack (Post 1035602)

yeah, you have a vacuum leak and the ISC can't lower the idle enough to compensate for the failure.

Thanks ill definately look into it more closely

peterwho

07-25-2013 07:27 AM

Fixed!

Stoked after i installed the new (used) IAC, idles @ 800 and idle does not surge anymore, so if anyone else has this problem give that a go.

(Y)

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