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Misfire at idle after VTEC? :\

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Old Oct 30, 2011 | 04:18 PM
  #1  
zombo's Avatar
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From: New Zealand
Icon2 Misfire at idle after VTEC? :\

So I got a strange problem. My #1 cylinder refuses to run at idle but ONLY after VTEC and ONLY sometimes :\ Like maybe once a week...

If I give the car a few revs it comes back to normal, no CEL's nothing.

Car has new spark plugs, wires, dizzy cap and rotor, everythings pretty well maintained. When I pulled the plugs the #1 cylinder was a diff colour to the rest.

Strange thing is the car usually runs mint as, no loss of power, no smoke, nothing. Any ideas?
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Old Nov 1, 2011 | 03:21 PM
  #2  
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Default Re: Misfire at idle after VTEC? :\

I would check injector #1 when this is happening.
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Old Nov 6, 2011 | 09:27 AM
  #3  
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From: Pittsburgh, PA
Default Re: Misfire at idle after VTEC? :\

what was the color difference between the #1 plug and the rest? you may have a clogged injector if it was more of a white/grey color then the others. which would indicate the #1 running lean.
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Old Nov 7, 2011 | 10:37 AM
  #4  
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Default Re: Misfire at idle after VTEC? :\

Vtec staying engaged perhaps?
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Old Nov 9, 2011 | 07:36 AM
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andrewsdsm33's Avatar
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Default Re: Misfire at idle after VTEC? :\

maby your ecu might be going bad
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