Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - weird rpms / idle hanging? Is this normal?
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Old 10-07-2012, 01:06 PM   #7
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Tune can get rid of it, and it IS annoying, especially if you're used to using engine braking as much as possible as a habit. The "wait" before it starts idling down after you take your foot off is a pain - by the time it starts to slow down you're ready to grab another lower gear & go through the wait again - since once you touch the gas to rev. match the waiting period starts again...

In "regular" shifting, once I got a tach. installed, I found I had to get off the gas early when shifting to avoid the "bump" in rpm after clutching...

And yeah, it's supposed to be an "emissions" feature from what I've heard.
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