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rough idle...

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Old Sep 21, 2003 | 01:37 PM
  #1  
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From: Va BiOtch, VA, USA
Default rough idle...

my idle jumps around from 400-800 rpms when the motor is warmed up. When its cold, it idles fine around 1200 rpm. When its warmed up, sometimes it'll even stall out. My setup is a 2000 B16 in a 92 civic hatch. Running a chipped P28. With no CEL at all. What could it be?
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Old Sep 21, 2003 | 02:42 PM
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From: Hanford, Ca
Default Re: rough idle... (See Are X)

Intake idle sensor is bad. Usually the symptoms when it craps out.
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Old Sep 21, 2003 | 09:18 PM
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From: Va BiOtch, VA, USA
Default Re: rough idle... (t04ecvc)

oh...i forgot to mention...I added a Intake Air Temperature sensor since the b16a2 doesnt have one...maybe i didnt wire it up right? or the sensor could be bad? is there a way to check that sensor?
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Old Sep 22, 2003 | 04:37 PM
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Default Re: rough idle... (See Are X)

up
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Old Sep 22, 2003 | 05:05 PM
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Default Re: rough idle... (See Are X)

Could possibly be the IAT, but I would rcommend you clean the IACV with carb/brake cleaner and cleaning the IACV screens if you do not have any CEL's.
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Old Sep 22, 2003 | 05:16 PM
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From: Blue Springs, Mo, USA
Default Re: rough idle... (poison)

You may want to check the IACV... idle air control valve on the back on the Intake Manifold, teh O-ring that seals it to create proper vacuum may be bad.. mine was... mine Idle was all messed up... hope I helped
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