Fuel only?

http://jbperf.com/JimStim/index.html
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JIrons
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Joined: Mon Nov 07, 2016 3:23 pm

Fuel only?

Post by JIrons » Mon Nov 07, 2016 3:37 pm

Does the stim need to be setup different with ms3 setup for fuel only? ie. Jumpers, dip switch, wheel mode, config, etc.

jbelanger
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Re: Fuel only?

Post by jbelanger » Mon Nov 07, 2016 7:33 pm

No, it does not make any difference.

The only issue is if you have the tach input circuit on your MS3 board set to read from the coil negative side, you may need to temporarily bypass some components in the circuit since the JimStim won't generate the high voltage.

Jean
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JIrons
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Joined: Mon Nov 07, 2016 3:23 pm

Re: Fuel only?

Post by JIrons » Mon Nov 07, 2016 8:04 pm

What voltage does the stim generate for rpm? Out of pin 24 I'm assuming.

jbelanger
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Re: Fuel only?

Post by jbelanger » Mon Nov 07, 2016 8:57 pm

It depends on the pull up jumper you use: http://www.jbperf.com/JimStim/JimStim_v ... .html#tach

Jean
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JIrons
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Re: Fuel only?

Post by JIrons » Tue Nov 08, 2016 11:11 am

I'm sorry I didn't ask that question properly. If I have a jumper for a 12-volt pull up installed shouldn't I be getting a 12-volt signal out of pin 24 by testing it with my multimeter? What would the voltage range be with adjusting the rpm pot?

jbelanger
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Re: Fuel only?

Post by jbelanger » Tue Nov 08, 2016 12:10 pm

You're going to have 12V pulses. The voltage you will see on a multimeter will depend on the duty cycle of the signal and on the meter itself. The only way to see the actual signal and its voltage is with an oscilloscope.

Jean
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JIrons
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Re: Fuel only?

Post by JIrons » Tue Nov 08, 2016 12:47 pm

Okay. Thank you.

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