No, this is for the VR input. I need to read this whole post again to look for clues.....pommie02 wrote:Bruce
i am using the opto input from the negative side of my coil.
would this mod help me ?
Bike died on the dyno
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Bruce Bowling
- Site Admin
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Re: Bike died on the dyno
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pommie02
Re: Bike died on the dyno
as i am not using any form of ignition, would it be worth removing the wires that i am not using.
could i be getting electrical noise from something ?
could i be getting electrical noise from something ?
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Bruce Bowling
- Site Admin
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Re: Bike died on the dyno
You could tie the VR+ to the Vref line, although there is a resistor on the board that does this. The output ignition wires really will not hurt anything if unconnected.pommie02 wrote:as i am not using any form of ignition, would it be worth removing the wires that i am not using.
could i be getting electrical noise from something ?
On the opto setup, have you tried triggering with a zener (like a 30 volt or so)?
- Bruce
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pommie02
Re: Bike died on the dyno
update..
i thought i had it fixed...but it is just playing with me.
i have removed all of the wires that i am not using, this has appeared to make the problem slightly better /
i am going to move the position ofthe microsquirt as it was above the engine.
the ignition power supply i am using is used for a lot of components, so i am going to bypass this as well.
bruce...can i just connect the 5 volt vref straight to the vr + ?
the bike cuts out when its still on warm up enrichments, and then if i hold the throttle in the same position for a while...but no where near as bad as it was
i thought i had it fixed...but it is just playing with me.
i have removed all of the wires that i am not using, this has appeared to make the problem slightly better /
i am going to move the position ofthe microsquirt as it was above the engine.
the ignition power supply i am using is used for a lot of components, so i am going to bypass this as well.
bruce...can i just connect the 5 volt vref straight to the vr + ?
the bike cuts out when its still on warm up enrichments, and then if i hold the throttle in the same position for a while...but no where near as bad as it was
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SQLGUY
- Experienced Squirter
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- Joined: Sun May 14, 2006 3:03 am
- Location: Colorado Springs, CO
Re: Bike died on the dyno
+5V Vref to VR+?! No!
+5V Vref is a low-current regulated 5V supply. Tieing it to a variable reluctance coil that can pulse 100V sounds like a quick way to kill uS.
What's the goal here?
+5V Vref is a low-current regulated 5V supply. Tieing it to a variable reluctance coil that can pulse 100V sounds like a quick way to kill uS.
What's the goal here?
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pommie02
Re: Bike died on the dyno
another update
i now know that there is a problem with the microsquirt..
i have refitted my carbies and the bike runs fine, no shutting down...
i have moved the position of the microsquirt away from any heat sources,i have changed power supplies,i have powered my fuel pump from the bikes original wiring. i have totally stripped the wiring and rechecked all of my connections.
the bike starts fine and idles fine...
you can rev it to about 3000 revs a few times, which is about 2 % throttle. it then cuts out and wont restart.
i thought i might be cranking pulsewidths, but i have altered them with no difference.
its not fuel supply because the microsquirt does not control my fuel pump...
i have a spark, so the only thing left is no injector control....i think
any ideas....
i now know that there is a problem with the microsquirt..
i have refitted my carbies and the bike runs fine, no shutting down...
i have moved the position of the microsquirt away from any heat sources,i have changed power supplies,i have powered my fuel pump from the bikes original wiring. i have totally stripped the wiring and rechecked all of my connections.
the bike starts fine and idles fine...
you can rev it to about 3000 revs a few times, which is about 2 % throttle. it then cuts out and wont restart.
i thought i might be cranking pulsewidths, but i have altered them with no difference.
its not fuel supply because the microsquirt does not control my fuel pump...
i have a spark, so the only thing left is no injector control....i think
any ideas....
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newtyres1
- Helpful Squirter
- Posts: 139
- Joined: Mon Feb 06, 2006 7:32 pm
- Location: Brisbane, Australia
Re: Bike died on the dyno
You could try wiring an LED and a 560 ohm resistor and a 1N4007 diode across one of your injectors. When the LED lights the injector is getting power and should be open. If it doesn't light up, then the injector is not getting a signal from the uS to turn on. Did you try hard-wiring the 12V from the battery to your uS to make sure the power isn't dropping off (as a temporary experiment)?
Ian.
Ian.
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- LED on INJ.gif (1.51 KiB) Viewed 1323 times
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pommie02
Re: Bike died on the dyno
Ian..
i will give that a try
i have connected it directly to the battery, with no difference...
i have moved the earths....
i wont be touching the bike for a couple of weeks...just in case i do something stupid
i am not normally a quitter...but its looking good at the moment
i will give that a try
i have connected it directly to the battery, with no difference...
i have moved the earths....
i wont be touching the bike for a couple of weeks...just in case i do something stupid
i am not normally a quitter...but its looking good at the moment
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newtyres1
- Helpful Squirter
- Posts: 139
- Joined: Mon Feb 06, 2006 7:32 pm
- Location: Brisbane, Australia
Re: Bike died on the dyno
The only other possible thing I can think of is a bad negative cable from the battery to ground...
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Dave Sloan
- MegaSquirt Newbie
- Posts: 13
- Joined: Wed May 12, 2004 2:01 am
- Location: Brisbane, queensland
Re: Bike died on the dyno
Is there any one else in Brisbane with a micro squirt that you could substitute just to confirm that there isnt something weird with the MS?