Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

JDM B16 CEL 14 IAVC -- Low Idle Speed

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Old 08-08-2011, 07:44 PM
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Default JDM B16 CEL 14 IAVC -- Low Idle Speed

So ive clean my IAVC and my FITV and my Intake Maifold still collects alot more air before it revs up my car. Any other idea what it can be.
Old 08-08-2011, 08:08 PM
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Default Re: JDM B16 CEL 14 IAVC

and im getting CEL 10 too
Old 08-08-2011, 08:15 PM
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Default Re: JDM B16 CEL 14 IAVC

If you reset the ECU, do both codes return?

With engine warm and high idling, pull off the air intake and then use your finger to cover the hole inside the TB leading to the IACV. Does the idle settle down? Then do the same test on the hole leading to the FITV.
Old 08-08-2011, 08:22 PM
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Default Re: JDM B16 CEL 14 IAVC

i have a very low idle and i forgot to reset it brb
Old 08-08-2011, 08:31 PM
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Default Re: JDM B16 CEL 14 IAVC

only getting 14
Old 08-08-2011, 08:31 PM
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Default Re: JDM B16 CEL 14 IAVC

wants to die with i cover IAVC
Old 08-08-2011, 08:32 PM
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Default Re: JDM B16 CEL 14 IAVC

Originally Posted by Mrevann
i have a very low idle
You really should have mentioned this^ in the first post.

Does unplugging the IACV have any effect on the idle speed?

Have you replaced the PCV valve?

Have you tried adjusting the idle speed as detailed in the service manual?
Old 08-08-2011, 08:37 PM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

No it doesnt have a effect. just stays at a low idle, havent replaced the PCV and no i have tried adjusting the idle speed since ive gotten the engine started. The Idle used to be around 750-800 now it seems like its at 250-300 or lower after a little rev up to about 1500 once it goes down it almost wants to stall.
Old 08-08-2011, 08:41 PM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Check the resistance of the IACV and whether the IACV clip receives battery voltage with the key in ON(II). It doesn't seem to be working.
Old 08-08-2011, 08:48 PM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

how do i do that sir?
Old 08-08-2011, 08:49 PM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Originally Posted by Mrevann
how do i do that sir?
Use a multimeter.
Old 08-08-2011, 09:19 PM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

ok sir .. ill let you know in the afternoon
Old 08-08-2011, 09:24 PM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Unplug the IACV clip and then measure resistance across the two terminals of the sensor (not wire harness clip). It should read 8-15 Ohms.

The 2P IACV connector has a power wire (from main relay) and ground wire (from the ECU). The power wire should read battery voltage to body ground. The ground wire should have continuity from the IACV clip to the ECU.

Last edited by Former User; 08-09-2011 at 09:56 AM.
Old 08-09-2011, 09:53 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

so get the resistance from the harness side and not the clip on the IAVC on the Intake Mani
Old 08-09-2011, 09:56 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Originally Posted by Mrevann
so get the resistance from the harness side and not the clip on the IAVC on the Intake Mani
Resistance is measured between the two terminals of the IACV sensor not the IACV wire harness. It should read 8-15 Ohms.

In contrast, the voltage and continuity tests are done on terminals in the wire harness connector.
Old 08-09-2011, 10:10 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

im honestly a little lost. =\
Old 08-09-2011, 10:12 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Originally Posted by Mrevann
im honestly a little lost. =\
Which part?
Old 08-09-2011, 10:17 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

what 2 terminals ?
Old 08-09-2011, 10:33 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Originally Posted by Mrevann
what 2 terminals ?
The IACV wire harness connector plugs into the IACV. When the connector is unplugged from the IACV, you will see two terminals/prongs on the IACV where the connector was removed.
Old 08-09-2011, 10:59 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

so check the resistance on that??
Old 08-09-2011, 11:03 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

im getting 0
Old 08-09-2011, 11:08 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

im getting 20.4 ohms =\
Old 08-09-2011, 11:25 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

???
Old 08-09-2011, 11:43 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

Originally Posted by Mrevann
im getting 20.4 ohms =\
What Ohm/resistance scale was the meter set on? It should be the lowest scale (e.g., 20 or 200 Ohms). What is the reading on the lowest scale when you touch the meter leads together?
Old 08-09-2011, 11:56 AM
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Default Re: JDM B16 CEL 14 IAVC -- Low Idle Speed

my bad its 14 ohms ....


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