Originally Posted By Crizila
Could be a wiring problem - loose / bad ground can do that.


Bit confused by this, with no volts the O2 sensor (mine) will read 10.4 AFR and with full voltage (5 volts) it will read 19.5. So if it is a loose ground, I would expect a rich reading followed by a lean spike when it reconnected (maybe?). shruggy

Joe

Last edited by sr4440; 03/02/16 03:53 PM.
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