| Small Gasoline Engine Diagnostic Test Reports |
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Date : 02/12/98 John Deere Co. Training Facility Gas Tractor Model #425 Before Catalyst Install Results |
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| Idle RPM | High RPM | ||||
| HC (ppm) 176 | HC (ppm) 76 | ||||
| CO (%) 5.41 | CO (%) 5.77 | ||||
| CO2 (%) 8.70 | CO2 (%) 8.90 | ||||
| O2 (%) 3.74 | O2 (%) 3.57 | ||||
| NO (ppm) 0 | NO (ppm) 0 | ||||
After Catalyst Install Results | |||||
| % Reduction 80 % 88 % |
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| Idle RPM | High RPM | % Reduction 75 % 80 % |
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| HC (ppm) 36 | HC (ppm) 19 | ||||
| CO (%) 0.69 | CO (%) 1.19 | ||||
| CO2 (%) 8.00 | CO2 (%) 9.60 | ||||
| O2 (%) 9.04 | O2 (%) 6.60 | ||||
| NO (ppm) 0 | NO (ppm) 0 | ||||
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