Hi Gruss, Just working backwards on your last post, Injector waveform Ok, Yes when you post the psdata we can all view it in Pico software. This is one of the real benefits of this system.
A fairly simple explanation follows.
I also use a LC1 on a regular basis. I assume you know that the standard O2 sensor will osccilate between rich and weak as the Ecu changes the fueling from slightly too rich to slightly too weak on purpose, as it can not tell how rich or how weak the mixture is once the sensor has switched from one extreme to the other. This will result in the waveform you are expecting to see, It will not oscillate if the mixture is perfectly constant. The differance between switching too rich and too weak is a very fine line kept somewhere near by long and short term fuel trims.
The LC1 is a wideband sensor with digital output (which can be set if required to output an imitation the standard sensor) so this will give a steady reading of say 14.7 or 14.3 etc without the oscillations. (Althought it is actually quick enough to show mixture changes on an individual cylinder if required)
Now you say you have an Lc1 connected to a fuel controller which works on the map signal so you can adjust the AFR's -
What do you think the standard sensor will output if the mixture is slightly weak or slightly rich ?
If you then ask yourself how sure are you of the 14.7 that the Lc1 is reading, being absolutely spot on ?
What would the standard sensor show if the mixture is constant at 14.7 ?
Enjoy scratching your head