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Definitly an ignition-something problem, usually it's the module which goes first. The new electronic cars don't like the old-school "pull-plugs rpm-drop" trick.
FYI:The ig module replaces the points, and acts as a "middleman" to selectively ground the coil.
-After it gets a pulsed signal from the pick-up on the distributor (or crankshaft), it opens the ground path running from the coil's primary windings(many small wires around the outside). This collapses the primary winding's magnetic field into the secondary windings(fewer thicker wires around a magnetic core inside), and fires high voltage out the coil wire.
An old coil may test correctly for resistance(through the primary circuit), but under a real load it will short through the housing and not spark. This is because the DVOM only uses low voltage to check the resistance, and that isn't enough to jump through a partially-burned wire wrap.
Check first that the coil is getting the 12V from the ignition circuit, and the ig module is getting pulses(AC?) from the timing pickup when cranking(probably uses a 12V supply as well)-They need these to work.
I'll guess a bad distributor pick-up, a bad dizzy/rotor or a bad coil wire.
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Meanwhile other things are still happening.
Last edited by john70t; 04-15-2007 at 07:28 AM..
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