Login    Register
  • Author
    Message

OK, THIS is weird...

Postby jwd3ca » Sat Sep 27, 2014 11:55 pm

Started up my CH750/Jabiru 3300 / EIS 6000 / GRT Sport FX EFIS this morning and was surprised to see, on the EFIS display, all 6 EGTs WAY over the alarm setting of 1400 F., like they were all over 2400. CHTs were normal for a minute or so, and then they, too, shot up over 500 or so. Oil temp also, over 325, All other EFIS readings normal; fuel, totalizer, PFD data, Map data, etc. The EIS readout was perfectly normal in all respects, EGTs, CHTs, oil temp all normal. Rebooted the EFIS, same bizarre behaviour.

Checked the D sub connector to the EFIS, seated properly and physically held in position with typical D sub connector machine screws.

Attaching a pic taken after engine shutdown. The EGTs dropped, and some look [sort of] normal, but just before engine shutdown, all were sky high RED.

Has anyone run in to such a failure? More details on demand (although the above text pretty much sums it up...) Thanks!
GRT_weirdness.jpg
GRT_weirdness.jpg (75.41 KiB) Viewed 6334 times
jwd3ca
 
Posts: 8
Joined: Sat Nov 23, 2013 6:15 pm

Re: OK, THIS is weird...

Postby Bobturner » Sun Sep 28, 2014 3:58 am

I seem to recall someone else had something like this. Turns out that person ran half of his probe wires to the box, and the "returns" to ground. Both pairs of wires from every probe have to go to the specified place on the EIS.
Bobturner
 
Posts: 402
Joined: Mon Mar 11, 2013 6:34 pm

Re: OK, THIS is weird...

Postby jwd3ca » Sun Sep 28, 2014 1:30 pm

Should have mentioned that the EFIS has been installed and working properly for over 50 hours, so mis-wiring is not the issue here...
jwd3ca
 
Posts: 8
Joined: Sat Nov 23, 2013 6:15 pm

Re: OK, THIS is weird...

Postby jwd3ca » Sun Sep 28, 2014 1:31 pm

And the EIS shows the correct temps,,,
jwd3ca
 
Posts: 8
Joined: Sat Nov 23, 2013 6:15 pm

Re: OK, THIS is weird... SOLVED

Postby jwd3ca » Sun Sep 28, 2014 5:22 pm

Seems I had inadvertantly change the EFIS setting "temperature units from EIS" from F to C ;'(
Pilot error, in other words ;') As usual ;')
jwd3ca
 
Posts: 8
Joined: Sat Nov 23, 2013 6:15 pm

Return to Sport SX

Who is online

Users browsing this forum: No registered users and 2 guests

cron