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Re: air fuel ratio gauge?

Posted: February 5th, 2010, 1:54 pm
by woodjeep
I hung a different meter on it this afternoon for the drive home, a little better scale in the volts range ...much easier in the daylight. Started showing voltage within a minute of startup. Once warm..idle flux between .55 and .7 fairly steady and constant rate of cycling. if it swung past .75 the next swing would take it a little below .5 Cruising at 60 with the cruise control on it basically sits at .55 to .6 Large changes in the gas ( around 1000 rpm) would make it drop to about .25 for a split second then go right back to around .6. It looks like the system wants to maintain a mixture that gives about .6 volts. Next I need a vaccum gauge to see how thats working but pretty interesting so far

Re: air fuel ratio gauge?

Posted: February 20th, 2010, 3:37 pm
by cherokee
Anybody figured out a good way to read off of the renix 5v o2 sensor?

Re: air fuel ratio gauge?

Posted: February 22nd, 2010, 6:08 am
by woodjeep
I am not familiar with the renix o2 sensor but you could probably do what I did and just splice into the output wires and read the resulting voltage on a voltmeter. Its not pretty or permanent but it will give you an idea of whats going on.

Re: air fuel ratio gauge?

Posted: March 11th, 2010, 4:02 pm
by jbxx
Renix
o2 low (rich) <2.5V.
o2 high (lean) >2.5V.
J.B.