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Oxygen sensor testing 88 240 200

posted by  swebb CO on  Thu Nov 6 22:20 CST 2014
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last visit: Thu Oct 23 10:52 CST 2014
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20KOhm impedance is not enough. The problem is that the O2 sensor doesn't really have any power behind the signal...so if you try to drive a 20k load with it, the voltage will droop. That's my limited understanding, anyway.

FWIW my cheapie analog meter was (*I think*) 20KOhm impedance, and it didn't show jack shit.

Try it..but if you don't get a signal, don't conclude it's a bad sensor.

Here they say 10 MOhm is the 'typical' recommendation:

http://www.swedishbricks.net/faq/fio2.html

Maybe an EE will come along and 'splain us.





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New Oxygen sensor testing 88 240 [200]
posted by  joekidd  on Thu Nov 6 12:48 CST 2014 >


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