fluctuating idle

Reply Subscribe

Thread Tools

Search this Thread

May 9, 2008

bigcf77

Thread Starter

Registered!!

Joined: May 2008

Posts: 1

Likes: 0

Rep Power: 0

bigcf77 is an unknown quantity at this point

fluctuating idle

so I swapped the old blown up motor out of a 2001 civic LX 1.7L with a stock used 1.7L motor that only has 30,000 miles, I hooked everything up and it runs and drives but the idle flucuates between 1000 and 2000 rpms the needle goes up and down up and down, there is no air intake but just an open throttle body but it seems weird that it would fluctuate that much even though the air intake isnt on, i have an AEM air intake on the way to my house. would an air intake stop the flucuating problem?

Last edited by bigcf77; May 9, 2008 at 10:38 AM. Reason: forgot to add info

May 9, 2008

WgnrNick

Registered!!

iTrader: (3)

Joined: Dec 2007

Posts: 416

Likes: 0

From: SoYoCO, PA

Rep Power: 228

Re: fluctuating idle

Throttle body control problem perhaps?

Wagner

May 9, 2008

Envy

Diamond Member

iTrader: (1)

Joined: May 2007

Posts: 1,070

Likes: 1

From: MD

Rep Power: 0

Re: fluctuating idle

my intaked car fluctuates but not that much. its probably just amplifying the normal fluctuations due to the unlimited airflow.

May 9, 2008

MrXclusivE

Registered!!

iTrader: (8)

Joined: Oct 2005

Posts: 1,244

Likes: 0

Rep Power: 263

MrXclusivE is a glorious beacon of light

Re: fluctuating idle

first of all its not really healthy for the motor to run without filtered air...

second, this shouldn't cause fluctuating idle. If the new intake doesn't fix the problem its time to clean your icv (idle control valve). there should be diy on how to do it on this site or on honda-tech