Troublcodes.net Trouble Codes OBD & OBD2 Trouble Codes and Technical info & Tool Store. By BAT Auto Technical
one of the best write up ons O2 and CAT. (examples are very good)
note: he is using a GMM that is fast, (DSO works too)
what he is seeing is exactly what is coming out of the sensor in real time.
Rubber meets road (no pun)
no interpolation or modeling done.
any scope that is 10 times faster than 6HZ can do this.
most scan tools are not up to the task of doing o2. (except for levels)
(and in many cases, it's not the tool , it's that ECU comm.'s are way too slow or both)
I think? CAN bus solves that.? (if ECU is fast enough or has enough process time to do this)
normal (must be hot as a pistol to get it )
http://www.troublecodes.net/articles...ure/Image4.gif
Linear Mode
