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Running wasted spark, how to make sure cam signal is ignored?

PostPosted:Sat Oct 17, 2020 10:38 am
by HugoW
Hi,

I have the 1.8 VVT engine of my MX5 nearly running, but now the cam sensor broke off. I dropped a wrench on it... It only costs a few bucks but my local parts shop tells me it takes 4 weeks to deliver. NOOOOOOO. I'm so close. I don't need fully sequential, how do I tell the Speeduino, via TunerStudio, to ignore the cam sensor? And should VVT still work, then? I think it should, as it is not closed loop.

Cheers,

Hugo

Re: Running wasted spark, how to make sure cam signal is ignored?

PostPosted:Sat Oct 17, 2020 2:07 pm
by runesm
Set to wasted COP in spark settings depending on your actual setup, and just choose anything but sequential in fuel settings.

Vvt will work on/off without cam signal

Re: Running wasted spark, how to make sure cam signal is ignored?

PostPosted:Sat Oct 17, 2020 3:14 pm
by HugoW
Marvelous, thanks.

Re: Running wasted spark, how to make sure cam signal is ignored?

PostPosted:Sun Oct 18, 2020 9:06 pm
by noisymime
Unfortunately this probably won't work.

The MX5 crank pattern is just 4 teeth on the crank and so the system needs the cam input in order to determine the actual engine angle.

Re: Running wasted spark, how to make sure cam signal is ignored?

PostPosted:Tue Oct 20, 2020 1:08 pm
by lsdlsd88
might as well do it right and swap in the 36-1 wheel..