[200q20v] Insulating MAF sensor body?

C1J1Miller at aol.com C1J1Miller at aol.com
Tue Jun 19 22:13:48 EDT 2001

In a message dated 6/19/01 8:52:49 AM Eastern Daylight Time, 
Les.Reid at Centrilift.com writes:

> Hi all,
>  There is an article in audiworld 
>  http://www.audiworld.com/tech/index.html
>  titled "Insulating the Air Mass Sensor" by Choy Ngee Hoe
>  In it he says that keeping the heat off the sensor body improves power 
>  the engine is hot by allowing the MAF sensor to be more accurate.
>  Has anyone done this to our cars?  Comments?
>  If this has been discussed before please forgive.
>  Les
>  91 200q20vt 157k
>  90 90q20v 159k

That's an old article, and I don't think it is accurate for our cars.  The 
MAF is plastic; and pretty well insulated from the turbo and other sources of 
heat.  Plus, that cool air flowing through it would keep it cool.

Insulating the pipe across the top of the valve cover might be a better 
suggestion; it tends to pick up some heat from the engine. However, I doubt 
it really transfers all that much to the air being combusted, as it is also 
warmer than ambient.

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