89 Microsquirt cold start tuning

Ncarter

Member
Jul 9, 2020
13
2
13
Michigan
My 1989 will not idle well at start. Installed a turbo last year and working on the tuning. When car gets warm it idles like a champ. Just need some advice on warmup enrichment and how to set a fast idle on start.
 
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Warm up enrichment can be adjusted. If the car surges and seems lean, add a few % in those areas.

Fast idle on start is set via Idle Cranking Duty/Steps, it can also be adjusted in the initial values table.