People w/ lc-1 and scanmaster 3

[rawavr4]

Does your scanmaster wb reading match your lc-1 readings on the laptop? If so, how did you do it? My sm3 shows 16.6-9 and the laptop reads 17.0-5. This is with the lc-1 scaling set to 0v-10:1 and 5v-20:1 which is how the scanmaster is configured. havent taken the car for a test drive yet to check cruise conditions yet. And my exhaust gaskets are leaking, which are getting replaced. Any way to get the sm readings more accurate? Grounds maybe?

[x2xtreme360]

Are the LC1 grounds all at the same location and in the same lug?

[rawavr4]

The Blue and white wires are soldered together and grounded by the fuse box w/ same lug and the calibration is grounded about 5 inches away. Both grounded to the body.