No RPM on Tunerstudio but RPM on tach when cranking

Forum for discussing how to install MicroSquirt(TM), choose and troubleshoot sensors, wiring, and communications for MicroSquirt (TM) and MicroSquirt Module(TM).
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Vwtravis
MegaSquirt Newbie
Posts: 2
Joined: Sat Dec 07, 2013 7:12 pm

No RPM on Tunerstudio but RPM on tach when cranking

Post by Vwtravis »

I have searched the form for similar problems but not much help. Its a fuel only on a air cooled engine with a points distributer. Triggering off coils -terminal to OPTOIN+ pin 30, and OPTOIN- pin 31 TO 12v source. I set trigger wheel to 0 and as for the dual spark i set to single cam wheel input 4 teeth.
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dontz125
Master Squirter
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Re: No RPM on Tunerstudio but RPM on tach when cranking

Post by dontz125 »

I'm pretty sure you can't use coil negative triggering for dual spark.
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Vwtravis
MegaSquirt Newbie
Posts: 2
Joined: Sat Dec 07, 2013 7:12 pm

Re: No RPM on Tunerstudio but RPM on tach when cranking

Post by Vwtravis »

dontz125 wrote:I'm pretty sure you can't use coil negative triggering for dual spark.
I have dual/multi spark set to no dual/multi spark still no rpm. But i can get rpm with a vr sensor connected to VR1
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