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Autometer A/F Gauge not reading right

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Old 08-03-02, 07:31 PM
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Thumbs down Autometer A/F Gauge not reading right

I've noticed that my A/F gauge is not reading correctly. My Power FC is saying that I'm running @ .85v @ WOT. However my A/F gauge is only lighting up the orange LEDs. According to the booklet that came with the Autometer gauge, the green LEDs should light up starting at .75v. So, when I go to WOT I should see at least two green LEDs light up. Whats going on with the gauge?
Old 08-04-02, 06:41 AM
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The voltage slope on OEM O2 sensors is so steep on either side of stoich that they are little more than on-off switches. Expecting any meter you connect to it to be "calibrated" blindly to the slope is a crap shoot. Different brands will have slighty different slopes and response times. Evey within one brand you will have tolerance issues.
I use my J&S gauge on the OEM sensor just to see if things are basically working or in closed loop. I use a wideband for meaningful data.

Of course this topic has been a beaten dead horse that a search would have yielded a conclusion to approximately the same results as above.
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