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Old 11-01-2011, 01:09 PM
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Igniter Question

How does the igniter know when to fire the coil on an 81 pickup? I can find no ecm or ecu. I notice in the fsm using a 1.5 volt battery to test the power transistor. What does this test provide as far as ankowledge of what is possibly wrong wth the transistor? Does it produce a spark? There is no meter attached in the diagrahm.
Old 11-01-2011, 01:45 PM
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The signal to the ignitor comes from the wire that is attached to the magnetic pickup coil inside the distributor.
Old 11-02-2011, 03:16 AM
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That is my understanding as well. Is there another fuse or relay for the 81 besides the under dash fuse box for the engine? I see nothing in the fsm.
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