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BS3 won't read cranking RPM

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Old 11-28-2009, 11:02 AM
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Default BS3 won't read cranking RPM

I need some help guys. I have everything hooked up and the car cranks, but when I pull up the cranking dashboard it won't read cranking RPM. The car is at a shop right now, but I plan on checking the resistance of the MSD crank trigger next. I have verified that it's hooked up correctly. Only thing I can think of is a bad sensor or I'm losing 12V when cranking. The voltage on the cranking dashboard still reads about 9V when cranking though. Any ideas?
Old 11-29-2009, 08:54 AM
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"The voltage on the cranking dashboard still reads about 9V when cranking though".
Some threads/posts on Yellow Bullet about this problem.
9VDC seems low to me. Someone there said his absolute bottom vdc is 10. I'd agree.




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