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Idle valve blew a step driver?????

Started by smurfinator, January 08, 2009, 12:46:52 AM

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smurfinator

#15
January 09, 2009, 12:11:04 AM
Quote from: lugnuts on January 08, 2009, 11:25:23 PM
Sorry for the basic question, but I was un-aware the Stepper outputs could even pull a ground?

I thought when you invert the output, it changed OFF to ON, and vise versa??? Am I nutty?

Beats me.  I just do what smarter guys tell me to do.
Audi ABZ 4.2 V8 in 1993 90 quattro
TTV 60-2 flywheel and cam sync
firmware: 1.2.20

Smurf blue (BMW Laguna Seca), hence the name!

GintsK

#16
January 09, 2009, 03:16:23 AM
Stepper chips output consist from two opposite transistors: NPN and PNP. So it can pull to Ubatt and also to ground.
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