View Single Post
spuggy spuggy is offline
Registered
 
Join Date: Jul 2003
Location: Perfidious Albion
Posts: 4,184
Quote:
Originally Posted by lvporschepilot View Post
That's great info. Will look into that with AEM software. Using Motec Hall sensors for both crank and cam.
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
__________________
'77 S with '78 930 power and a few other things.
Old 08-14-2019, 09:18 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)