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emergency who can read wire schematics

Old April 18th, 2010, 10:57 AM
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emergency who can read wire schematics

I think I found the problem with my wifes van but the circle loop thing between the a/b wire has me confused. What does that mean?
Thanks

674door.jpg
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Old April 18th, 2010, 11:23 AM
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It possibly means the wires are twisted to reduce EMI pickup...
It could indicate a shield, but i do not see it grounded anywhere.
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Old April 18th, 2010, 11:31 AM
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It is a twisted wire. So nothing to do with the two should be conducting with each other? I have the some ohms A to A as I do A to B.

Long story short I had to put new intake gasket on my wife 99 Silhouhette van and after the nightmare of install last weekend it won't start. No spark. I have taken it back 1/2 way apart and tripple checked conections and its all right. I then started Ohming wires and found this.
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Old April 18th, 2010, 12:40 PM
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I thought it would be a twisted.... No, they are not connected to each other.

You should have some sort of resistance through that pickup coil, but it would be in the milli-ohms - very low and hard to check. It will be hard to tell what the resistance is without a very sensitive meter.

Did you change that sensor or damage it or its wires in any way?
Is the sensor close enough to its triggering device?

Newer cars are a pain to work on...
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Old April 18th, 2010, 12:48 PM
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problem solved....the crank trigger harnness had been too close the exhaust for a long time. When I had the harness loose I must have disturbed it enough to break the burnt insulation causing a short. Fired right up now.
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Old April 18th, 2010, 01:15 PM
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Great - glad you found the problem. Sounds like duct tape to the rescue!
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Old April 18th, 2010, 03:48 PM
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It may mean that the wires carry a A/C signal from sensor.

Last edited by greenslade; April 18th, 2010 at 04:21 PM.
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Old April 18th, 2010, 04:52 PM
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Thanks for posting the solution. Always nice to know it was fixed, and good job!
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Old April 18th, 2010, 05:11 PM
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Originally Posted by greenslade
it may mean that the wires carry a a/c signal from sensor.
x2.
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