16 pin DLC cables pinout proprietary on scanner end

[Witsend]

Years ago i bought a HF OBD EOBD code scanner with CAN capability that I replaced my older MATCO generic OBD2 code scanner that would not scan the newer CAN cars I was starting to see at the Ford dealer when all I wanted was a quick 30 second check for pending codes before and after working on most cars.
The cable finally need replacement and get a replacement that doesn't work because the pinout on the cable end that hooks to code scanner is different, and I sent cable back.
I bought another replacement HF code scanner (successor w ABS), the cable from the new successor did not work on the old scan tool either. I tried graphing of the o2 sensor on several vehicles but the 2008 Dodge Ram 6cyl half ton pickup , the scantool was unable to process and display the data correctly in graph mode. Maybe a Chrysler just deciding to use a unconventional pid transfer rate to mess up aftermarket tool users.

[Skip]

The O2 sensors cycle between 2.5-3.5 volts. I think it is off the scale.

[Witsend]

The O2 sensors cycle between 2.5-3.5 volts. I think it is off the scale.

Thanks , so these upstream O2s are the newer style (typically more expensive to replace) Air Fuel Ratio sensors that work off a 5 volt feed and not a traditional 0-1volt O2s?
Might explain why the data pid text numbers and graph line in a 1 volt scale appears to be 5 times thinner and progressing in 5 times faster , hyper speed across screen like someone just cut the wrong wire for the timer of a bomb in a low budget action movie. Thought I might have to wire an air bag to a16pin CCD adapter.

[Wheel]

Thanks , so these upstream O2s are the newer style (typically more expensive to replace) Air Fuel Ratio sensors that work off a 5 volt feed and not a traditional 0-1volt O2s?

No. typical o2 sensors - just a curve ball Chrysler throws you to be different and unnecessarily complicate things. These same sensors read under generic or global obd2 data typically are shown to switch from 0 - 1 as we are more used to seeing.

Might explain why the data pid text numbers and graph line in a 1 volt scale appears to be 5 times thinner and progressing in 5 times faster , hyper speed across screen like someone just cut the wrong wire for the timer of a bomb in a low budget action movie. Thought I might have to wire an air bag to a16pin CCD adapter.

change for the sake of change.

[Witsend]

No. typical o2 sensors - just a curve ball Chrysler throws you to be different and unnecessarily complicate things. These same sensors read under generic or global obd2 data typically are shown to switch from 0 - 1 as we are more used to seeing.

Sometimes I wish there were a panel of retired Shark Tank auto mechanics that any proposed engineering ideas had to pass before them and get the thumbs up , and save us and car owners from bad ideas, unnecessary funk and special service tools before it can be ok'ed for patent and to go into production. Probably even save the manufacturers on costly recalls too.

[Wheel]

Sometimes I wish there were a panel of retired Shark Tank auto mechanics that any proposed engineering ideas had to pass before them and get the thumbs up , and save us and car owners from bad ideas, unnecessary funk and special service tools before it can be ok'ed for patent and to go into production. Probably even save the manufacturers on costly recalls too.

And a real life shark tank to throw engineers, CEOs, environmental/safety bureaucrats(who actually contribute to neither) who insist on pushing their junky ideas anyway. But they'd probably get us for animal cruelty for giving the sharks a bellyache.

[Skip]

The sensor output is still the traditional 0-1V. The PCM biases the ground with 2.5 volts for a more accurate reading in lean conditions where the voltage may go below 0. Some scan tools show both the 2.5-3.5 reading and the 0-1.

[Wheel]

The sensor output is still the traditional 0-1V. The PCM biases the ground with 2.5 volts for a more accurate reading in lean conditions where the voltage may go below 0. Some scan tools show both the 2.5-3.5 reading and the 0-1.

I have seen scan tools give both readings as well.
I had heard that the reason for a bias was to verify circut integrity.
I was taught an o2 sensor going below 0v as monitored with a voltmeter or scope was to be replaced and one would not see a below 0 voltage on a scan tool. Adding this bias for the reason you stated would possibly be a way to spot a bad sensor with this problem with the scan tool.