It's am AEM WB that knock was as I got on it it was a little lean.
I did not even look at the narrow band readings.....
You will find the the narrow band is more reliable in a general sense than the wb in 90% of the cases. If the wb sensor is a Bosch (which yours is) and it has seen a single dose of leaded fuel, then you can figure that it is not reading correctly. If the narrow band sensor has seen leaded fuel, then it is suspect as well altho we seem to think the Denso nb sensor is a bit more resistant.
If the wb gauge does not agree with 0.1-0.2 a/f's with the PL, then I suspect the install.
Your car should be showing 0.850v on the narrow band at your reported wideband readings at that low of boost. Obviously you have data that is not worthy of use and you need to determine if the narrow band or the wide band is the problem.
I would think the car should be tuned to a wide band reading of about 11.2 for that low of boost with no sign of timing retard. It looks like it is hearing a noise that is not detonation but given that I don't believe your readings at this point and don't know the parts history, I would not place a bet on anything.
The voltage is low. I don't know if it is low because it is the typical scantool difference due to the analog to digital conversion in the ECM, a corroded fuse holder in the fuse block for the ecm-ign fuse, or the common loose, corroded terminals on the ignition switch connector. Only a voltmeter connected to the wiring on the inside of the car will tell us if the scantool is reading correctly or is off a bit as so often a case. I have seen different ecms provide a different voltage to the scantool so I am always leery as to the source of "low voltages".
The 200 amp alternator does not mean it is good either...I have one and it has a cheap imported regulator in it just like most do today. I don't see anything that suggests the battery is bad but we don't have any data to go on either way at this point. It is really the voltage going to the module that counts in most cases, I think.