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Re: Engine dies and PCM loses comm. only when reading OBD2 data
Posted to Technical Discussion Forum on 10/31/2014

I recently scanned a 2005 F-550 and ignored the warning on the MODIS to NOT check codes while running. It shut right off. Ooops!

I seem to remember it being "do not read active codes while running, engine may stall.". Memory codes, no trouble. Login to read more.