02 Sensors

[Programmer]

Geoff,

I'm thinking it's moreso that the people running the equipment may not wait
for the purge cycle, auto zero, etc...which may cause the O2 to contaminate
early. I know if it gets a good slurp of water (condensibles from the
exhaust),
 you can forget about doing any testing for the day <BG>.
I was told that I'd have to replace the O2 in my MT3500 4 gas every
year---not so. AFR meters may be different...

Lyndon.


-----Original Message-----
From: Geffro <geoffsue at one.net.au>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Sunday, June 06, 1999 6:19 AM
Subject: 02 Sensors


>I was told a while ago that AFR meters have a limited lifespan due
>to the conditions they operate in
>If this is the case why dont 02 sensors have to be replaced every
>250 hrs (or whatever the lifespan of the meters is)
>Are the 02 sensors just another way of measuring the AFR or not?
>Co(2)nfused
>Geoff
>
>
>