I have noticed latey that my O² reading is almost non-existent. It every once in a while I see it go up to lile 3.25-3.5 volts or so. When I first checked it a couple of months ago, it would show anywhere from .20-.90. Now every few seconds (5-10 seconds) I see it shoot up and then come right back down to 0. Any ideas?

 

have you been running any race gas??? or leaded fuel??? if so that is your problem and you need a new o2 sensor

 

Nope, just regular 93 from the pump.

 

check the connections and if thats not it then replace it, my o2 voltage did that and i just had a bad connection

 

Thanks, I will. Anyone else? Why the high voltage though?