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    ECM...or something else? Mercruiser EFI 0L916255

    Well..to follow up, I found my issue. I was about to pull the ECM to send off for diagnostics, when I discovered a tiny ground wire that routed down behind the engine, tagged in with another, had popped loose. I grounded it and voila-- I have the beep and the fuel pump energized...
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    ECM...or something else? Mercruiser EFI 0L916255

    Thank you...I see now that the serial number belongs to the drive. I have all the original paperwork. That is correct....I get no beep and no pump at home trying to diagnose. I just went out and tried wiggling the main wiring harness....still nothing. Would the ICM control the fuel pump in...
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    ECM...or something else? Mercruiser EFI 0L916255

    Thanks...I'll give that a try. Yes..it's a MEFI 3
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    ECM...or something else? Mercruiser EFI 0L916255

    Hello--Long time lurker, first time poster. I appreciate all the insight I've gotten out of this forum for the last few years. The experience on this forum has pointed me in the right direction almost every time. I am stumped on this problem however. I bought a new to me 2001 Chap 230 SSI...
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