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Old 12-18-2012, 11:51 PM   #79 (permalink)
1carnut
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Join Date: Jan 2012
Location: Lebanon, OH
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Sparky - '07 Toyota Prius Base

Voltage_kwh - '18 Chevy Volt LT
90 day: 151.04 mpg (US)

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My vote on the idle issue is the IACV. I had an idle issue with my 94 (not quite as severe as yours) and cleaning the IACV helped but did not cure the issue. I also checked vacuum and replaced the PCV to eliminate those. Finally, I swapped the IACV with another (used) one and it took care of the issue. My idle would kind of "stick" like yours is doing before settling down.
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