Summary of VG Data Dictionary changes from Version 20001214 to Version 20011205 OLD VERSION 8 0 C YYYYMMDD 1 10 VG VERSION 20001214 NEW VERSION 8 0 C YYYYMMDD 1 10 VG VERSION 20011205 OLD ALTCODE1 10 0 C 1 130 ADDITIONAL LABORATORY CODE 1 NEW ALTCODE1 15 0 C 1 130 ADDITIONAL LABORATORY CODE 1 OLD ALTCODE2 10 0 C 1 140 ADDITIONAL LABORATORY CODE 2 NEW ALTCODE2 15 0 C 1 140 ADDITIONAL LABORATORY CODE 2 OLD ALTCODE3 10 0 C 1 150 ADDITIONAL LABORATORY CODE 3 NEW ALTCODE3 15 0 C 1 150 ADDITIONAL LABORATORY CODE 3 OLD TESTLEN 3 0 Z HHH 4 260 TEST LENGTH NEW TESTLEN 5 0 Z HOURS 4 260 TEST LENGTH OLD RTESTLEN 3 0 Z HHH 4 700 LAST CALIBRATION TEST TEST LENGTH NEW RTESTLEN 5 0 Z HOURS 4 700 LAST CALIBRATION TEST TEST LENGTH OLD QPOWER 7 3 N 6 1270 ENGINE POWER QUALITY INDEX NEW OLD NPWR 6 0 N 6 1310 POWER SAMPLE TOTAL DATA POINTS NEW OLD BPWR 6 0 N 6 1320 POWER BQD TOTAL DATA POINTS NEW OLD OPWR 6 0 N 6 1330 POWER OVER/UNDER RANGE TOTAL DATA POINTS NEW OLD ALEXGNO2 5 0 N ppm 6 2320 AVG LEFT EXHAUST GAS NOX STAGE II NEW OLD AREXGNO2 5 0 N ppm 6 2330 AVG RIGHT EXHAUST GAS NOX STAGE II NEW OLD AEXGNO2 5 0 N ppm 6 2340 AVG EXHAUST GAS NOX STAGE II NEW OLD CUMEXNO2 5 0 N ppm 6 2350 CUMULATIVE REF OIL TEST AVG NOX NEW