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

Have you confirmed the RPM reading is above cranking RPM?

Scope is putting in a 12-1 square wave at 50Hz (or whatever I select), and ECU shows the correct RPM of 3000 RPM. 50 * 60 = 3000. There are no crank sensor input anomalies, its steady.
Yellow- crank signal from AWG into VR+ at 50Hz
Aqua ...

OK, I think what I am seeing is not due to a pulldown, but a really bad curve fit in the 3 point curve generator, it acts the same as having an input pulldown and not calculating the parallel resistance on an NTC, bad offset in the high voltage area. NTC curves are usually a double curve and the ...

I'll revisit this in a bit, I found another manual at the MSExtra site that has conflicting information on what inputs to use for crank/cam sensors and how they are to be wired, totally different than the instructions at useasydocs (!!!?!?!??!!!!!!!). I was under the impression that the crank signal ...

Has anybody ever actually scoped one?

Switching from simultaneous firing to alternate firing with NO OTHER CHANGES does nothing but double the PW. Both injector channels still fire simultaneously.
What's going on? What am I missing here?

Either 3.83 or the latest MSExtra cannot get uS v3 to fire inj1 and inj2 alternately. ALWAYS fires simultaneous. Played with it on the scope/AWG for hours. Tried about every combo of crank/cam triggering possible with the wave generator.

What am I missing?

If there isn't a pulldown I need a way to do a better thermistor calibration, the 3 pt curve is missing the hump on the high resistance end of the scale.

There appears to be a pulldown on the temp inputs, what is its value?

Important for calculating accurate thermistor tables as the pulldown adds parallel resistance and skews the reading the closer to the pulldown value the thermistor is at.

http://www.msgpio.com/manuals/mshift/gpconnect.htm

Above instructions show both 2.5mm stereo jack tip/ring/base as DB9 2/3/5, or DB9 3/2/5. Only one is correct, which is it?

http://www.useasydocs.com/details/wire.htm

Wiring instructions for micro merely state 'prewired to jack'. Doesn't state ...

Forum search function is broken, spits out every relevant term in the search field as being 'too common'.

How do you properly calibrate (including fault parameters) ratiometric pressure sensors when you can't change the voltage field where 0 pressure and max pressure reside?

The help file math ...

Why be concerned with pressure transport delay on exhaust (EMAP) and not intake (MAP)? Same rules apply, right?