Noise From Throttle Body

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ForceMajeure
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Joined: Tue Dec 14, 2010 9:46 pm
Vehicle: NB8A

Noise From Throttle Body

Postby ForceMajeure » Tue Feb 22, 2011 6:38 pm

I have a high pitched humming noise coming from my throttle body, which is electronic in nature as when i disconnect the wire attached to the throttle body it goes away, It happens when the ignition is on and the car started/running.

I noticed this last week but forgot to mention it today whilst at Mania, I'm guessing the wire is for the choke or something like that, though im probably wrong.

The sound emanates up my intake pipe and comes out the CAI.

Anyone have a clue whats going on here? :idea:

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jerrah
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Re: Noise From Throttle Body

Postby jerrah » Tue Feb 22, 2011 11:51 pm

Idle control valve. It's what boosts your idle during warm up or when your air conditioning kicks in.

Are you running the stock engine computer or aftermarket?
1991 MX5

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ForceMajeure
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Re: Noise From Throttle Body

Postby ForceMajeure » Wed Feb 23, 2011 12:13 am

Im running a stock setup.

BTW, full disclosure, i noticed this noise after putting on a pod filter a couple of weeks back which was just a temporary addition whilst waiting for my Mania CAI which was installed today.

Of course the noise could have been there longer but my attention may not have been drawn to it, but i suspect not.

project.r.racing
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Re: Noise From Throttle Body

Postby project.r.racing » Wed Feb 23, 2011 9:27 am

Any car with a IAC (or similar) that has had the original air filer, air box, piping and resinator removed to make way for a pod filter or CAI (or similar) will have these noises. Most of those said items were designed to hide the intake noises.

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ForceMajeure
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Re: Noise From Throttle Body

Postby ForceMajeure » Wed Feb 23, 2011 2:12 pm

Ok, so you reckon this noise is normal, nothing to worry about?

Should I tell people its just my "electronic jet boost control"..........nothing to worry about. :lol:


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