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post #1 of 6 (permalink) Old 06-12-2007, 01:46 PM Thread Starter
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source for tach

Well, I've been out of the loop for a while, but if anyone remembers some of my previou posts I got the SC swap done. Just chasing a few gremlins now. The distributor to DIS swap went well, but the tach doesn't work. Anyone know where the tach on a 3.8 LX gets its signal from? On the SC it came from the Ignition Diagnostic Monitor pinout on the module so that's where I hooked the IDM circuit to, but no good. The Ford service manual is about worthless as it only shows for the DIS cars.
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post #2 of 6 (permalink) Old 06-12-2007, 01:59 PM
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If I'm not mistaken the tach signal comes from the coil. I can verify this later.

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post #3 of 6 (permalink) Old 06-12-2007, 03:27 PM Thread Starter
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Thanks. This wiring was actualy the hardest part of the swap.
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post #4 of 6 (permalink) Old 06-12-2007, 04:16 PM
 
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Got any pics of the swap? i also believe you get the signal from the coil
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post #5 of 6 (permalink) Old 06-18-2007, 01:28 AM Thread Starter
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Yup, coil it is. I jumped the cam sensor pin from the DIS module to the tan/yellow wire from the old coil, and now I have a tach. I will take some pictures in the morning and put them up.
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post #6 of 6 (permalink) Old 06-19-2007, 01:59 PM Thread Starter
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Here are some pics. Nothing special yet, I stayed pretty much stock with it. I need to put the loom back on the wires by the TB, and notice I used the 89-93 style shorter shifter.

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