Quote:
Originally Posted by lvporschepilot
That's great info. Will look into that with AEM software. Using Motec Hall sensors for both crank and cam.
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Ah, sorry, that probably won't apply then....
My cam sensor is hall effect, with Bosch mag for ref. Signal from the hall sensor is digital (6.35V or 0V), nothing in-between, it's only the mag sensor that varies output with speed/susceptible to interpreting noise as signal at cranking speed (because the voltage peak is so low there - it's over 10V peak @ 1000 RPM).
Mind, it never hurts to examine everything with a critical eye again and again...
If its only a "first cold start" and warm starts are fine, might be related to parameters for wetting the intake - MoTec has a "first pulse" to get things wet - (and a "post start" for extra fuel for a few seconds over and above warmup comp). Maybe the "first pulse" isn't enough? Hard to imagine it could inject "too much" on a single pulse