Fitech efi Rpm noise fault code on efi

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Rpm noise fault code, eng running on carb spray
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Root cause was failed ECM. Fitech fixed it

acooken
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I think the root cause was me leaving a plug wire off and it musta zapped the efi. I sent it back to fitech. 1 week ago have got it back yet. the deciding factor for them to tell me, send it to them was NO RPM signal. Was urs running fine before? fitech had me troubleshoot my distributor components. till I showed them this video. as u can see my distributor components are fine, it runs.

acooken
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This is cranking and running off my buddy spraying carb cleaner down throttle body. As u see my dash tach is getting the rpm signal. The handheld is not, they are both hooked up to tach terminal.

acooken
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Did you ever figure this out? Mines doing the same thing

mikehopkins