97 honda civic revs to 3k and wont go down!!

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Nov 1, 2019 | 03:47 PM

Jordan Wilson

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Joined: Jul 2019

Posts: 23

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From: Indiana

97 honda civic revs to 3k and wont go down!!

So I swapped in a B18B. I am in the process of turbocharging it. It was running fine, then one day I went to start it and it revs to 3k and holds. Dosen't move, just pins 3k and holds. Any ideas?

Nov 2, 2019 | 04:11 PM

Jordan Wilson

Thread Starter

Honda-Tech Member

Joined: Jul 2019

Posts: 23

Likes: 1

From: Indiana

Re: 97 honda civic revs to 3k and wont go down!!

Any ideas would be appreciated!

Nov 2, 2019 | 06:26 PM

JRCivic1

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Joined: Jan 2013

Posts: 10,016

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From: The South - Roll Tide !!!

Re: 97 honda civic revs to 3k and wont go down!!

Search "Hunting Idle" and you will get instructions to troubleshoot this...

Nov 4, 2019 | 12:17 PM

Chris Neven

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Joined: Oct 2019

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Re: 97 honda civic revs to 3k and wont go down!!

Intake manifold hose came loose? Any air hose loose? That was my problem after a head gasket swap

Nov 4, 2019 | 02:04 PM

Spaceturtle917

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Joined: Jul 2019

Posts: 299

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From: West MI

Re: 97 honda civic revs to 3k and wont go down!!

Cover up your iacv port on the throttle body and see if that fixes it. If not spray carb cleaner on the troubled areas such as hoses and gaskets on the intake, fuel injectors as well. If the idle drops where you spray it you found your vacuum leak.