I have a hard stumble at 6000 rpm. If I accelerate slowly it will stumble hard then go on to redline. If I try to go WOT it bucks multiple times real hard. I`ve attached a data log from yesterday where I took her out for a drive and pushed into the problem area a couple of times. Anyone have an Idea as to why this happens?

 

I can't remember your configuration... are you using a CAS with 2 teeth cut out?

 

Yep Ken I have a modded CAS.

MS1 ver 3.0
MSnS Extra 029q2
Megatune 225

 

you wouldn't happen to be using the 025 style decoder would you?

 

Yes I am using the "025 style" decoder! Is that not the right one. Which is the correct one?

 

the only other option is 024s9 I believe.

 

I`ll make the change and give it a try. Let you all know how it does!
Thanks Ken!

 

As usual Ken makes it look so easy. It was the decoder routine. I set it to 024s9 and she pulls up to and through redline with no stumbles.

I need to learn why one indicator light at the bottom of screen in Megatune flashes on off every second of the time while running. The one doing this is Fan/Output4.
Any ideas what is causing this, a setting maybe?

 

I wouldn't worry about it if there's nothing connected to it. It's probably a setting somewhere but there are 3 or 4 things that can cause it.

Tach out, output 4 settings, or fan control are the only ones I can think of off the top of my head.

 

I am planing an electric fan. Is this the only output that will configure for the operation of the e-fan or will another one work?

 

I think there are a couple, I'd have to check the website and/or code to be sure.

 

I know you are always busy as hell Ken and I appreciate your work with all of us. If you can get to it that would be great. If you would rather point me in the direction of any resources to find this out I`ll gladly look as well!

 

http://megasquirt.sourceforge.net/extra/index.html