[Stanley Waggoner]

I’m working on a 2.4 liter 2004 Honda Element with 111,300 on the clock.
It recently developed the notorious “idle surge” so common among Honda engines. I started by checking for vacuum leaks, then removed the air idle control valve. Clean it thoroughly, purged air from the cooling system, then performed an idle relearn. It worked for about two days, but the idle surging returned.

Next step was to purchase and install a new Honda OEM air idle control valve, purge cooling system and perform another idle relearn.

After one day, the surging has returned, but very intermediate. It may work fine for three days in a row and then the surging returns. It goes and comes without any particle pattern not prone to cold nor warm days.

I’m out of fresh ideas to solve this idle surge issue. Do you know of anything else I can check?

Any help would be appreciated,
Stanley

[Author]

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