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Subject:Re: Temp I & Temp II Sensors
From:David Beierl
Date:Sun, 5 Mar 2000 04:42:46 -0500

At 01:17 AM 3/5/2000 , Gina wrote:
>Would someone please explain to me the difference between these two
>sensors...which controls what?

Temp I measures the air temp just ahead of the AFM -- Temp II measures the
engine temp.  Temp I is there b/c the mass of air per unit volume changes
with temperature, and the AFM only measures volume; while the fuel charge
needs to be proportional to the air mass.  Later "hot-wire" type *mass* air
flow meters measure the air mass directly and I imagine they don't need a
temp sender in the air stream.

d

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"