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#1
06-14-2010, 05:18 PM
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Failed Emissions: High HC and CO
Hello everyone,
I just got back from an emissions test. Had to grab a drink at Sonic afterward, it is hot outside! (1/2 price between 2 and 4PM on drinks) Bad news: the M103 failed emissions. Here are the results, please suggest a starting point, I only have 15 days to correct the problem so I can test the car again for free or it is another $40 to test again. High Speed Results (25mph) RPM: 1438 HC (ppm): 293 (Standard is 148) FAIL! CO (%): 7.28 (Standard is 0.94) FAIL! Nox (ppm): 102 (Standard is 1047) PASS! Dilution: 17.38 (Standard is >6.0) PASS! Low Speed Results (15mph) RPM: 1705 HC (ppm): 284 (Standard is 152) FAIL! CO (%): 7.35 (Standard is 0.86) FAIL! Nox (ppm): 98 (Standard is 1146) PASS! Dilution: 17.55 (Standard is >6.0) PASS! Overall: FAIL!
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2006 BMW M5 "Heidi" @ 109,000 miles 2005 MBZ C55 AMG "Lorelai" @ 165,000 miles 1991 MBZ 300E "Benzachino II" @ 165,000 miles 1990 MBZ 500SL "Shoshanna" @ 118,000 miles (On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!) 
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