Can not seem to get the Voltage readings
I am using the ELM327 and I can not figure out how to read the voltages of the oxygen sensor etc..I am using scanmaster software full version. I click on read in the oxygen sensor tab and it just keeps coming back NA all the way down the list..
Please any help would be greatly appreciated.. I am also driving a 2001 Nissan Altima and trying to fix a P0138 code.. I can clear the code whenever the light comes on but other then that I am not getting much info and wanna know the volts of the 02 sensor since its throwing a code.
Thanks in advance to anyone who replies!!!!!