Reducing RPM's in Neutral - Page 3 - Fuelly Forums

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Old 12-05-2009, 09:24 AM   #21
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My Scion xB does the same thing until I stop for about 30 seconds to get the idle to really drop down to 650-640rpm then it will idle low while coasting. It maybe the cat in my case not quite getting up to temp but until I stop for a several seconds the idle is in the 800-900rpm range and burns more gas. Even when it finally does settle down it doen't get all the way down to the lowest burn rate/idle while moving and any power steering use raises the idle a little. It does seem to idle lower on hot days better than on cold days. Forget about nights because the lights increase fuel use. Come to think of it . . . it could also be related to battery charge too.
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Old 04-01-2010, 11:54 PM   #22
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im gonna try this soon, you dont think it'll set off a service engine light?
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Old 04-02-2010, 07:18 PM   #23
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hmm someone told me if you dont do this right it can cause some damage.. will look into more..
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