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New AMM follow up. Passed E-check Yaaaaa
Posted by John Roberts (more from John Roberts) on Thu, 27 Oct 2005 17:10:53
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So if you recall I sent the new AMM back and got another one because it was actually worse than the one it was replacing. Ran no better and got terrible numbers at the exhaust pipe. Got the car E-checked today with the new AMM and it passed using no "tricks". 16 degrees bdc timing, premium gas.
It had been running lean and and failed with high NOx close to double the limit. Numbers with the new AMM we just passing at 1271 ppm with failure at 1278 ppm, so a whopping 7ppm or .5% cusion but passing just the same.
Morals of the story:
When you've eliminated everything else, it's got to be the AMM, and if a new one doesn't help, send it back and get another one.
AND
You shouldn't need tricks to pass an emissions test.
posted by 216.23.59...
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