WB Instruments

rr rrauscher at nni.com
Fri Jul 13 13:28:05 GMT 2001


I placed an Excel data file into incoming. It
includes columns of interest for WB O2 observation.

Open the data0.xls file in Excel and graph it. Use
the line graph w/o markers function. Then stretch
the graph out to the right for better resolution.

Columns:

EngRun: runtime in hh:mm:ss (will be horizontal scale)
Rpm:    engine rpm / 10; 167.5 = 1675 rpm
Map:    manifold pressure in KPa
O2:     ecm narrowband O2 sensor in mV / 10; 51.3 = 513mV
AFR:    true AFR as reported by WB O2 sensor
STO:    stoich reference line for AFR reading


The 2 minutes of data is entering a limited access highway
and leveling into a steady state cruise. This is from a
TBI equiped medium-po engine.


BobR.

p.s. the data0.xls file is dated 7/13/00, don't know why.
----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org




More information about the Diy_efi mailing list