It happened during initial ground runs and troubleshooting. This is
being made public knowledge for a friend:)

Bobby

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Monday, August 19, 2019 9:07 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: EC3 Coil Diagnostics

Booby are you postulating what might happen, or did this actually happen
to you? - The HT fried the processors!

Steve

> On 19 Aug 2019, at 9:42 pm, Bobby J. Hughes bhughes@qnsi.net
<flyrotary@lancaironline.net> wrote:
>
> Just make sure to position / secure the plugs so than cannot fall off
the engine and into the wiring harness during the test.   It does not
end well for the controller.
>
> Bobby
>
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
> Sent: Monday, August 19, 2019 8:21 AM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: EC3 Coil Diagnostics
>
> This is what the manual says:
> "Remove all the spark plugs from the engine (or connect the plug wires

> to spare plugs) and lay them on the engine where you can see the spark

> gaps. Make sure the body of the plug is in contact with something
> grounded to the engine. Now put the Mode switch in Mode 8 and press
the
> Store switch. This puts the EC3 in ignition diagnostic mode and fires
> all the coils as if the engine were running at about 3000 RPM. You
> should see all plugs firing. To end this diagnostic mode, change the
> Mode switch selection or cycle the power off on the EC3."
> (EC3-A8 13B ENGINE CONTROLLER 07-30-13 INSTALLATION AND PROGRAMMING
> GUIDE 2008 series)
>
> Sure you've got +12V power to the coils?
> Are the coils properly grounded?
> Coils wired correctly to EM3?
> Note the different coil pin-outs from brand to brand.
>
> If yes, I guess you'll have to inspect the program code.
>
> Finn
>
> On 8/19/2019 8:46 AM, Stephen Izett stephen.izett@gmail.com wrote:
>> Hi Guys
>>
>> For those of you with EC3???s.
>> I wanted to check all coils were firing yesterday so plugged the
leads into plugs laying on the top of the engine.
>> I tried to enter the coil diagnostic with Mode 8 and pressing Store.
I got nothing.
>> So I checked the injector diagnostic Mode 1 Cold Start plus Store and
the injectors all lit up.
>> Am I missing/forgetting/Misreading the manual or something else?
>>
>> Cheers
>>
>> Steve Izett
>>
>>
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>
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