Hey guys,

I'm wondering if anyone can give me some insight to a idle problem I'm having with my K80E (i'm pretty sure it was self induced).

Here is the history....

I have over 5 hours on the engine now and around 20 flights with no problems. Recently I burned out a plug on start up and changed my glow value from 32 to 21. I ran a few test starts after and everything seemed fine. When I went out to the field, I noticed the engine would hang on start up just over 20K rpm, so the next day we decided to increase the PUMP RAMP from 6 to 8.

Video of hung start: [youtube]http://www.youtube.com/watch?v=FAnIo48Nu5c&feature=related[/youtube]

That seemed to correct the problem but I noticed that the PW value at idle jumped from around 100 to the 130's. So today i backed the PUMP RAMP down to 7 and increased the glow value to 26, and got this result:

[youtube]http://www.youtube.com/watch?v=bOigV2Q1x-M[/youtube]

I know it might be a little hard to see on the video, but the ECU seemed to be looking for the correct PW value that would hold the 45K RPM at idle. The idle rpm fluctuated between 35K up to 50K and the PW was anywhere from 90 to 130's

On the second start, I decreased the PUMP RAMP back to 6 (factory setting) and got pretty much the same:

[youtube]http://www.youtube.com/watch?v=J0t1XIxSwh0[/youtube]

Should I let the engine idle for longer so the ECU can adjust for the changes in settings???

I'm thinking I should start back at square one, return all my setting back to the factory settings (glow 32 and PUMP RAMP 6), learn RC, and then run the engine to allow the ECU to find the proper settings to hold idle at 45K. The engine ran fine (minus the blown plug) before I started messing with the setting.

Thanks
Chris