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93 940 high Nox 900

posted by  someone claiming to be Gil on  Wed Jun 28 01:32 CST 2006 [RELATED]

The 940 failed yesterday due to high NOx, about 2x the legal limit. I'm thinking CAT, but someone else mentioned it may be running too lean. What are some common areas to check in regards to running too lean? Should I replace all the vacumm lines? Anything else?

Thanks,
Gil





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