MK 808 Upstrean o2 PID's
196 Views 2 Replies Latest reply: 2025-08-11 19:37:08
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Level 2
(18) points
Please forgive my ignorance I am only a DIY'er that is very new at using the Autel platform. I have a 6 month old Autel Mk808 that I am playing around with.Now , I was checking live Data on my friends 2003 Acura RSX 2.0L. he just changed the bank 1 sensor 1 oxygen sensor , and we wanted to make sure it was working as it should. I located the B1 sensor 1 pid output voltage but the reading is in VOLTS not MilliVolts. I thought the new sensor was bad because it was not oscillating between 0 and 1 volt . It was staying at around 2 volts. But the car is running fine and the short term trims are at around 2 to 5 percent.So I checked the PID for the upstream O2 on my 2014 Infiniti with a V6 3.7l, and I get a similar result. No millivolt reading only a flat line graph of a little over 2 volts on both banks on upstream sensors. Then I checked a 2006 GMC Silverado with a 5.3l engine upstream sensors and THIS one shows in millivolts and it is oscillating as it should. What gives?Also I checked the first two cars in OBD and OEM live data and could not find a O2 pid that is in millivolts (MV) and it reading are way out of range and not going between 1 and 0 volts. -
Level 10
(7041) points
Hi, the reason that the GMC gives the right kilovolts readings means there is nothing
wrong with your device ,the other two cars do not use millivolts than. -
Level 10
(7041) points
I ment millivolts of course, not kilovolts as shown.
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