Quote:
Originally Posted by Funracer
Did this today. It showed .8V, too rich. As I turned the mixture CCW towards lean it went lower .7V and then dropped instantly to .3 MILLIVOLTS! I tried to reduce it to .5V many times but it did this every time. There was no reading between .7V and .3 millivolts. This is a brand new sensor I installed back in February.
I have 2 other O2 sensors that tested good today. I will put one in tomorrow and see if it works better.
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Why are you now worried about the O2 sensor voltage? Focus on getting the DC to 50% without any inputs on pins 2,7,12,14
(pins 7,12,14 must be above 5 volts, pin 2 at about .50V).