Engine & Internal Chat about beefing up your engine's insides here.

RANDOM REVVING?!

  #1  
Old 10-16-2006, 02:34 PM
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Join Date: Aug 2006
Posts: 8
Default RANDOM REVVING?!

HI, I HAVE JUST REPLACED MY D16Y7 WITH A NEWER ONE, I AM HAVING A PROBLEM AS WHEN I TURN IT ON, IT REVS UP TO THE REDLINE BY ITSELF. WONDERING IF ANYONE KNOWS WHY THIS COULD BE? ANY HELP IS APPRECIATED. CHEERS
 
  #2  
Old 10-16-2006, 07:19 PM
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Default RE: RANDOM REVVING?!

something is dumping too much fuel or too much air.... i had a prelude that would rev and cut and i covered up a malfunctioning fast idle valve and it was fixed.
 
  #3  
Old 10-16-2006, 08:38 PM
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Default RE: RANDOM REVVING?!

check your throttle body gasket and intake manifold gasket.
 
  #4  
Old 10-17-2006, 12:49 PM
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Join Date: Aug 2006
Posts: 8
Default RE: RANDOM REVVING?!

cheers,i managed to get it running ok after giving all the bolts and connections an extra tweak. i turned it off and left it for a while. when i came back and turned it on it ran really low then made a crunching sound before cutting out. now its turning but not starting up. my fuel pump+leads are working. any help on this one guys? thanks
 
  #5  
Old 10-19-2006, 12:29 PM
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Default RE: RANDOM REVVING?!

describe crunching sound. you could have done something really bad as opposed to just running lean.
 
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