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Re: OBD-II Scan to replace tailpipe test in Oregon?
Posted to Emissions Forum on 9/30/1999 3 Replies

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Good question Mike. Here's the answer: OBD II testing has been shown to correlate with the FTP better than even the I&M 240. (I&M 240 does better than ASM, ASM does better than BAR 90, etc...)

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