Interpreting Scan tool data

[tomtom72]

Hi guys, I borrowed a snap-on scan tool. I don't know what to do with the data. In my 90 Z's shop manual there is a page, 6E3-A-14, that has an example of what a normal 90Z's data should look like. I used Gordon's jumpers to look for codes in the ECM and CCM & didn't find any.

The scan tool said there were "history" codes H46 & H54. The scan tool said there were no current codes. I wrote down all the data that the tool gave while the motor was running in closed loop.
TPS = .54v angle = 0%
Left Int. =107 Right Int. = 126 to 131 think this is "counts" Helm says "varies
spark adv. = 8* Helm says= 0*
left BLM = 115 Right BLM = 126 Helm says 118 - 138
BLM cell =4 Is this = Block Learn Cell, Helm says = 0.
Battery V = 13.4 Helm says = 13.5 to 14.5
Fuel pump V = 13.4 and the 2* fuel pump = on. I don't get that, H2O = 219*
MAT = 109*
Cross Count, left=12 right=0 to 1
BPW, left=3.8 ms right=4.3 ms
MAP v=1.32 to 1.34 Kpa=34

The snap-on tool seems to use different language than the page in the Helm book, so I'm lost. The car smells lean and has a miss at idle and up thru the rpm range. Any light thrown my way would be appreciated.
Thanks,
Tom