86 505 turbo air flow meter

Francois Dion (francois@hyperreal.org)
Wed, 26 Aug 1998 21:57:15 -0400

Ok, this is the first AFM that is so out of whack that I
cant rescue it. between 5 and 8 I get 108ohms (should be
340-450 ) at best and between 9 and 8 I get 389ohms
(160 to 300 ohm) and between 5 and 7 i go from 38 to 670ohm,
and if i continue I get back to 0 eventually. I also measured
540 ohms between 5 and 9 and 364 ohms between 7 and 8,
but on both these I dont have any specs. I checked the values
of the on board resistors and they seem to progress from high
to low, so why is the value so erratic (it should go between 60
and 1000 ohm.

So I guess I need a replacement... anybody has a spare one?
bosch number 0 280 202 057 (i checked in case I had the
wrong one installed). It has a temp sensor on the outlet side
(should there be one on this setup?)

I will also replace the oil pressure switch and 60 celcius
switch.

Ciao,
Francois Dion (francois@hyperreal.org)

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