MoTeC Global Forum

Can someone point me to what this could be? This in on a motorcycle application. I am experiencing what sounds and looks like a misfire. This error popped up when it happend on the last pass on my log file. It seems to only happen when i am pulsing my aux 8 channel for my nitrous solenoid. If i lock the solenoid wide open with smaller jetting it makes a flawless pass. Put bigger jetting in and try to progress it to keep it from wheeling and or spinning i get this misfire/ popping/ spitting condition. Thanks

What frequency is the solenoid designed for? Might want to try switching it to aux 1 or 2, some of those nitrous units are pretty high current and have lots of flyback. Keep it off 3 or 4.

You could test what freq works best using the test outputs utility. There will be a low end freq it won't respond, and a high end freq it won't respond, somewhere between will be a freq it works best at, in general the higher the freq the narrower the DC% band of operation. In other words at 20Hz it may work from 20%DC to 95%DC, and at 50Hz it will work from 35%DC to 70%DC in a fairly linear fashion.

It is a wizards of NOS Pulsoid. I am at 50hz right now and have good response and can pulse from 20% to 100%. I am using AUX8 in my M84 to control the solenoid using a solid state relay in between. Thanks

Anyone?

Good day,

I know that this post is somewhat dated but for those end users who might be reviewing it for insight.

Scott@FP touched on a common problem which some users run into unknowingly, depending on the frequency you intend to operate the circuit at there are designated auxiliary channels available to support it. That is to say, AUX1 or AUX 2 might be more suited to a high frequency while a lower AUX output such as 8 may only allow low frequency operations.

If you select the Auxiliary output functions for a specific outout channel you will be able to use the F1 help for a general listing. The initial listing just give you a numerical value which would match up with a desired function, however, as you scroll down the list there's a brief description for some of the functions which need to be activated on a high frequency channel only. For example, the parameter value 4 which is used for a tacho output works best on AUX output 5 through 8 as these channels operate at a maximum of 200 Hz.

I just thought I would mention this in a follow up post as some end users might be unaware.

Cheers!