Tach signal from MJ

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Billy C
Posts: 31
Joined: Thu Jan 03, 2013 2:11 am

Tach signal from MJ

Post by Billy C »

I'm having trouble getting a solid tach signal form my Mega Jolt. The tach I have on the dash works fine but the RaceCapture doesn't seem to like it no matter what software settings I choose for it. Just gives me really erratic readings. Maybe this isn't a software issue but figured I'd have to start somewhere
-Billy C

brentp
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Joined: Wed Jan 24, 2007 6:36 am

Post by brentp »

Hi Billy,

What tach signal are you using from the Megajolt to drive it?
Brent Picasso
CEO and Founder, Autosport Labs
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Billy C
Posts: 31
Joined: Thu Jan 03, 2013 2:11 am

Post by Billy C »

Just splitting the one to the tachometer. So from the MJ tach out to the tachometer and racecapture's input. Just put a scope on it this weekend and am seeing 2v square wave. No noise at all.
-Billy C

brentp
Site Admin
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Joined: Wed Jan 24, 2007 6:36 am

Post by brentp »

Can you test it without the tachometer attached? you should be seeing a square wave larger than 2v... this is a bit odd.
Brent Picasso
CEO and Founder, Autosport Labs
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Billy C
Posts: 31
Joined: Thu Jan 03, 2013 2:11 am

Post by Billy C »

No problem.
-Billy C

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