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Spark Control

PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Spark Control

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Feb 12, 2007 | 06:22 PM

#1

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TECH Apprentice

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From: Newmarket, Ontario

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Spark Control

1. What tells the stock ECM the information needed to know when to spark?
2. Is it only the cam position sensor?
3. If not what else?
4. What signal is the output device (cam sensor, ???, etc...) giving the ECM?

I am asking because I want to develop the code to get Megasquirt to control the ignition based on stock sensors, any input would be great. In the true spirit of Megasquirt I will share once developed of course.

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Feb 12, 2007 | 08:11 PM

#2

FormerVendor

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CPS - the crank sensor

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Feb 12, 2007 | 08:37 PM

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Crank sensor, as said, tells the pcm where the piston is. Cam sensor tells the PCM which stroke it is on.

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Feb 12, 2007 | 08:42 PM

#4

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Quote:

Originally Posted by 2xLS1

Crank sensor, as said, tells the pcm where the piston is. Cam sensor tells the PCM which stroke it is on.

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