losing RPM signal around 800rpm

fastfreddie · Post by **fastfreddie** » Fri Sep 15, 2006 4:42 pm

Here is a picture of starting!

fastfreddie · Post by **fastfreddie** » Fri Sep 15, 2006 4:42 pm

Here is a picture of starting!

Posted by email.

krisr · Post by **krisr** » Sun Sep 17, 2006 1:25 am

Are you capturing on rising or falling edge?

I'm running an MSD pro-billet dist with the VR trigger circuit, rising edge is what i'm using. Your polarity is probably ok if you can get it started & running. I found that reversed polarity would not even trigger.

fastfreddie · Post by **fastfreddie** » Mon Sep 18, 2006 1:51 am

Thanks Kris!

It turns out i should have checked it out myself!

The VR trigger isnt' sensitive enough to run older "low" output VR sensors, a day of prodding and comparing led me to that conclusion.

Brgds

Freddie