Funny 1st starting idle revs

[DMcK]

When I 1st start up my car when I have not used it the idle sits at about 1200 revs. It eventually drops after about 5 minutes to normal revs at idle. Does this always happen or is it a problem? I was told it could be an internal choke. I have an AGU Engine.

[Bish922]

I've also been noticing this problem and its getting very loud while it sits at 1.2K i just thought it was becuase it has been cold lately 

[martinGTT]

Does the same on my ARZ engine for about 5mins then drops to normal idling revs......... i just assumed its the choke?  

[mcgee9t2]

could be maf related.
or idle controll valve related.

[DMcK]

Seems quite common. Well hope it's just normal. Must be because the weather. When it warms up might notice a change. Can't see why would be MAF? But then again I don't know much  lol

[JimBR]

Isn't it the secondary air pump which makes a horrible noise on cold start (like a diesel) then goes off after a couple of minutes? I'm sure there is a How-to with a DIY fix.

Nothing to worry about.

[asboGTI]

mine did the same are there any flat spots or does it ever bog down i am changing the maf today i am just wait for my lift to get home so i can head up to get the new part

[tokemk4gti.t]

Isn't it the secondary air pump which makes a horrible noise on cold start (like a diesel) then goes off after a couple of minutes? I'm sure there is a How-to with a DIY fix.

Nothing to worry about.

+1 secondary air pump sound horendous on first start up with high revs mines more like a minute tho not 5 :-/ bit seriously makes my car sound like a bag of cack

[JimBR]

It's 90s I believe not 5 mins.

[jonnydavies5]

Iv also got this appening to mine sounds like a diesil when start then goes. Does any1 know what the problem is and how to fix it?