 idle fluxation, vacumm issue? |
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 Apr 9, 2007 - 6:41 PM
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 Enthusiast  Joined Feb 22, '04 From USA Currently Offline Reputation: 3 (100%)  |
when i am at a light and have my foot on the brake. my engine idles at about 500 rpm then goes to about 800 up and down constantly till i go. i think there is a vacuum leak. there any way to test just the tubes? or do i need to use the vacumm test on all the vacuum lines? anyone else have that issue on the 5sfe.
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Apr 9, 2007 - 6:56 PM
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 Enthusiast Joined Aug 9, '06 From Ma Currently Offline Reputation: 1 (100%) |
It's not a vacuum leak.
Your idle will be higher if it was. Could be a whole bunch of things tuneup fuel injection cleaning [or Seafoam] clean ISC EGR --------------------  |
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Apr 9, 2007 - 9:27 PM
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Enthusiast Joined Feb 22, '04 From USA Currently Offline Reputation: 3 (100%) |
i have done tuneup and seafoam
how do u clean the egr,pvc, isc |
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Apr 9, 2007 - 9:58 PM
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Enthusiast Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
my 7afes idle is very sensitive to the plugs being all gapped evenly. is the vibration rhythmic? if it is then check the gaps across all 4 plugs and make sure theyre evenly gapped.
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Apr 9, 2007 - 10:21 PM
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 Enthusiast Joined Jun 1, '03 From WV Currently Offline Reputation: 2 (100%) |
QUOTE(Bitter @ Apr 9, 2007 - 10:58 PM) [snapback]545030[/snapback] my 7afes idle is very sensitive to the plugs being all gapped evenly. is the vibration rhythmic? if it is then check the gaps across all 4 plugs and make sure theyre evenly gapped. I never thought to check the gaps. I didn't think that would make that much of a difference if they were noticably off. I'm checking this tomorrow just to make sure it's running as close to perfect as possible. -------------------- Live Free, Be Happy
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Apr 10, 2007 - 8:15 AM
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Enthusiast Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
QUOTE(Bigmeanbulldog55 @ Apr 9, 2007 - 10:21 PM) [snapback]545039[/snapback] QUOTE(Bitter @ Apr 9, 2007 - 10:58 PM) [snapback]545030[/snapback] my 7afes idle is very sensitive to the plugs being all gapped evenly. is the vibration rhythmic? if it is then check the gaps across all 4 plugs and make sure theyre evenly gapped. I never thought to check the gaps. I didn't think that would make that much of a difference if they were noticably off. I'm checking this tomorrow just to make sure it's running as close to perfect as possible. when one or more gap is larger/smaller than the others i get a rhythmic vibration from the engine when its at hot curb idle or in gear idle. i can usually tell how many plugs i need to regap and even guess the side of the engine from how it vibrates  but thats just me.
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Apr 10, 2007 - 9:13 AM
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 Enthusiast Joined Feb 5, '05 From pineapple under the sea Currently Offline Reputation: 9 (100%) |
sometimes when my car is warmed up and sitting at idle my rpms will bounce from 850 and back to 500. I have been meaning to pull my plugs, but its good to know that it might be a gapping issue.
-------------------- 1991 MR2 - T-tops - Crimson Red - Gen3 3SGTE - Lots of money
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