Higher smog test NOx at 1610rpm(25mph) than that at 1670rpm(15mph)?
What is your question?
Smog test result shows too high NOx at both 25mph and 15mph, but good higher NOx at 1610rpm(25mph) than that at 1670rpm(15mph), where the engine generate higher gases.
what gone wrong? the engine ? the CAT. converter's leaking? or damaged? Thanks for reply.
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