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

I'm using a 10k ohm pot instead of coolant sensor input to MSII. That way I didn't have to add a temp sensor and I could keep my temp gauge. I use it as a manual choke. The odd thing is that even when it's warm it will only start with the "choke" on. At first I thought it needed more afterstart enrichment, but that wasn't it. I also experimented with the Cranking PW. When I set the warm up enrichment to 100% (no enrichment) it starts fine. You can then turn the knob to tell MSII that the engine is up to temp and it continues to idle nice. If you try to start it with the pot telling MSII that it's up to temp then the led closest to the RS232 (D14) port only blinks intermittently and the engine fires intermittently also.
On Datalogs I see rpm going to zero here and there, while the map reading on the same line indicates engine was cranking. My guess is I need to adjust the input resistor, but I am baffled as to how the Coolant sensor input could make a difference to the input trigger.
I have warm up advance disabled and have tried with no EGO authority.
I'm using code 2.35
Ideas?

To clarify: when I said "I set the warm up enrichment to 100% (no enrichment)" I mean I adjusted the 160 and 130 degree bins on the warm-up wizard to set them at 100% so that MS does not enrich the mixture when it thinks the coolant temp is 150 degrees.

Another possibility related symptom is that I was having a hard time setting the acceleration enrichment. I know how to do it and I had no problem setting it with MS I a year ago. Now I see that when I tap the gas quick it falters because the LED that flashes steady at idle goes out for a skip, sometimes causing a stall. This doenst seem to happen when I'm driving. It drives fine. I have to be carefull not stall it at a light, though. I have a 6.5 pound flywheel so RPM can change very fast when the engine is not engaged to the road. Hmm.. I don't think it's the fast rpm change, because if I hit the gas pedal to fast, it stalls before it revs. (i think)
I'll go check that, and the grounds too while I'm there.