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Honda Accord 2009 high idle rpm issue #5417646 04/30/20 06:50 PM
Joined: Apr 2020
Posts: 10
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dgvu89 Offline OP
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D
Joined: Apr 2020
Posts: 10
Hi,

I bought the car 5 months ago from Carmax. Recently, I read the Service Manual & notice that my car has high idle rpm. I should be 750-850 rpm but actually 950-970 rpm.
Is it normal to a car with 112k miles on it? I there any way to fix without special tools?
If I must have it fixed. Should I go to Honda dealer or Carmax or local car services?

Thank a lot!


Honda Accord 2009 LX-P 120k Miles.
Re: Honda Accord 2009 high idle rpm issue [Re: dgvu89] #5417755 04/30/20 08:47 PM
Joined: Dec 2006
Posts: 169
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Carbuff Offline
Offline
C
Joined: Dec 2006
Posts: 169
Clean out the throttle body & butterfly. THEN do an Idle Learn Procedure. (Google it)

If the RPM drops, great. If not, live with the higher idle.


Atwell Haines
NJ
Re: Honda Accord 2009 high idle rpm issue [Re: dgvu89] #5417818 04/30/20 10:30 PM
Joined: Sep 2015
Posts: 2,662
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mk378 Offline
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Joined: Sep 2015
Posts: 2,662
Don't trust the dash tach to measure idle rpm.

Re: Honda Accord 2009 high idle rpm issue [Re: mk378] #5417848 04/30/20 11:17 PM
Joined: Apr 2013
Posts: 6,564
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gregk24 Offline
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Joined: Apr 2013
Posts: 6,564
Originally Posted by mk378
Don't trust the dash tach to measure idle rpm.


Why?


2012 Honda Accord EX-L K24z3
61,xxx miles
PPPP 0w20 / Fram Ultra

2014 VW Jetta SE 1.8T ea888
54,xxx miles
Castrol Edge 0w40 / OEM filter
Re: Honda Accord 2009 high idle rpm issue [Re: gregk24] #5417869 05/01/20 12:23 AM
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clinebarger Offline
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Instrumentation is often off!


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: Honda Accord 2009 high idle rpm issue [Re: clinebarger] #5418125 05/01/20 10:29 AM
Joined: Aug 2004
Posts: 21,874
The Critic Offline
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Posts: 21,874
Originally Posted by clinebarger
Instrumentation is often off!

Agreed. I would verify the RPM with a scan tool.

If the idle speed is out of spec, check for a torn air intake boot.


2011 Toyota Prius 1.8L - 207K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 146K - Valvoline Premium Blue Restore 10W-30
Re: Honda Accord 2009 high idle rpm issue [Re: dgvu89] #5418128 05/01/20 10:32 AM
Joined: Oct 2011
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Brybo86 Offline
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Check to make sure airbox is fully clamped together


12 Honda Odyssey 112k
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