Surging Idle

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Doomed2Walk
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Joined: Sat Jun 21, 2003 7:39 pm
Car: 2005 Subaru Impreza WRX STi WRBP on gold
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I have a SR swap with the mods listed below, but my idle is surging and when I open the throttle too quickly it my car sputters and just runs terribly rich. Is this due to a vac leak somewhere? I checked everything out, but from the wastegate actuator to my boost controller brain, the hose isn't clamped, could it be a leak there? Thanks

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Silvia007
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Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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surging as 800rpm to 1-2k rpm then back to 800rpm? If that's so, check your coolant level inside your radiator.
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JonPowell
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Also might be a dirty IAC valve, try cleaning it.
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