Pilot Study, Fault Identification and Effect of Maintenance

Diesel Vehicle Emissions – In-Service Emissions Testing – Pilot Study, Fault Identification and Effect of Maintenance - Appendices
Cost Benefit
Test No: 1676 & 1830 - Rank 2 / 110 (High PM)
10000
1000
NCH Vehicles > 25t GVM (1980 to 1995)
Injectors replaced
Original Test
$1,617
Results
100
10
68
65
20
21
After M inor Repair
Catego ry A verage
4 3
10
1
0.6
0.6
0
NOx (g/km.t) PM (mg/km.t) Average
Vehicle
Total Cost
Repair Time
Opacity (%)
Condition
($)
(hours)
Parameters Measured
Figure A7-62
Cost Benefit
Test No: 1513 & 1831 - Rank 3 / 110 (High PM)
Results
10000
1000
100
10
NCH Vehicles > 25t GVM (1980 to 1995)
Injectors and air & fuel filters replaced
Original Test
71 56
After M inor Repair
33 29
Catego ry A verage
4 3
$2,771
19
1
0.5
0.7
0
NOx (g/km.t) PM (mg/km.t) A verage
Vehicle
Total Cost
Repair Time
Opacity (%)
Condition
($)
(hours)
Parameters Measured
Figure A7-63
Cost Benefit
Test No: 1677 & 1843 - Rank 7 / 110 (High PM)
Results
10000
1000
100
10
NCH Vehicles > 25t GVM (1980 to 1995)
Injectors replaced
Original Test
55 54
After Minor Repair
13
Category Average
12
4 4
$1,524
11
1
0.6
0.8
0
NOx (g/km.t) PM (mg/km.t) Average
Vehicle
Total Cost
Repair Time
Opacity (%)
Condition
($)
(hours)
Parameters Measured
Figure A7-64
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