MicroSquirt.com read only forum (Jan.15,2018)

I know this post is old, but I've ran into these sort of issues today. So originally my engine had a stepper motor because of space constraints (its a 50 cc). Since I'm running microsquirt, I made a frankenstein PWM IAC valve out of the original pintle and a briggs and stratton fuel shutoff solenoid ...

I don't know if you still need this, but whatever injector resistance you use shouldn't matter, as long as it doesn't require more current than the injector and the power rating of the resistor. If you want to make a dummy injector with similar characteristics to the injector, though, use this ...

Looks like a VR sensor. Usually a hall effect sensor is an active circuit so it needs a voltage supply - and three wires. Try mounting the sensor face about 1/8" from the wheel teeth. Load tooth analyzer onto the microsquirt, crank the engine and see what sort of signal you get, if any, and adjust ...

Well, good news. I finally got the motor to start repeatidly and quickly :) . After checking the ignition timing and injector timing using a white LED, and finding everything in the right place, figured I needed to recheck my configuration. I originally had a 12-1, 24 skip tooth running a dual spark ...

Let me get this straight. You're saying this configuration will work, but only using dual spark, crank wheel trigger, no cam wheel. I thought you were talking about M-N with no dual spark. I tried the dual spark configuration, and I'm able to get the right speed and use the correct amount of delay ...

So lately, I made an external VR conditioning circuit, since I determined the one internal to microsquirt was dead (Tooth analyzer did not show any input, but did show a signal when ran through opto) Anyway, I set up my parameters ideally using the 2.891 code (12-1, 24 skip teeth, 6 delay). It ...

Yes, but how does it know which injector to fire at a given time. With my setup, it will be getting a trigger every 360 degress, and that's all it knows. It doesn't know if its on compression stroke of 1 or 2, and doesn't know which cylinder is connected to which injector. So, I can have injector 1 ...

Hi all,

I thought about this after an issue with Ignition timing. I have a 12-1 trigger wheel, on a single cylinder engine, which mathematically would mean skip teeth should be 24. After posting this, Matt told me that skip teeth cannot be greater than trigger wheel teeth, so I should change it to ...

After I realized the stimulator uses default mode, I tried the default mode, which is distributor pickup. This worked great. RPM responded quickly and never got stuck at zero. I had the injector and spark plug going, shocked myself in the process. I'm pretty sure the injector wasn't firing earlier ...

I checked out the air gap on the vr sensor, it is about 1mm. the bracket has spacers so that you cannot move it from its original mounting location, but that could be easily changed...Before I thought about doing that though, I found out about tooth analyzer, just what I need I though. First, I ...