Re: turbo seca - maf>turbo

[JTesta1966@aol.com]

In a message dated 6/10/00 8:24:29 AM Eastern Daylight Time, 
nacelp@bright.net writes:

<< I'd imagine the element has similiar properties to a thermistor, and just
 knowing the voltage drop across it would allow you to figure it's
 resistance, and hence temperature.
 Grumpy >>

Thats how a hot wire MAF works. By measureing the current needed to obtain 
the wires temp ,  it measures the air flowing (cooling off) the wire. Hence a 
"hot wire MAF" Remember the old vettes/Camaros etc had a "burn off relay" 
which overheated the wire at key on to clean the wire. I imagine that being 
the case, that the circuit is pretty sensative to contaminants. matter of 
fact, there is a TSB out on Fords and Mazda's using the hot wire sensor that 
MAF too high codes along with O2 reaching rich limit is usually caused by 
contaminants on the wire. Just FWIW. Must be pretty sernsative.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jim Testa                                                         TType86 on 
#BuickGN
ASE Master Technician                                     
buick.fiendish.net:6667
L1 Advanced Engine Performance                          NJ Lic MV Inspector
jtesta1966@aol.com                                  NJ Lic Emission Repair 
Tech
http://members.aol.com/jtesta1966/buick.htm
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