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Author Topic: S&S ECM replacement for 1998 MM ECM problem  (Read 1809 times)

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baadog1

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S&S ECM replacement for 1998 MM ECM problem
« on: April 21, 2015, 04:28:41 PM »

I replaced the stock MM ECM in 1998 flhrc. The front cylinder injector would not fire. I followed the flow chart for testing in the HD repair manual. I found that testing from pin 18 to pin 35 was a fail. This means the ecm was not sending the front injector a pulse signal to fire. I called S&S and they were very cooperative. As of now I have sent the ecm back to them three times and each time I get the same problem. I just gave up and put the original HD MM ECM back in the bike and the bike runs fine. In checking between pin 18 and pin 35 the stock ecm checks out fine. I guess I will eat the $500 and forget about tuning. I believe S&S is a good company with excellent customer service. I just can't understand why this program error can't be fixed. Anyone else have this problem? Thanks, the baadog.
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