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I have found that the most common cause of ignition module failure, across all brands, is a faulty secondary ignition system. Basically, there is an open in the secondary circuit or a cross fire occuring.
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www.hotrodders.com/forum/gm-ignition-module-burnouts-38...
www.hotrodders.com/forum/gm-ignition-module-burnouts-38462.html
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Gm Ignition Module - 479 results like the Accel 35362 Hei Control Module, 1990 90 Buick Reatta GM 3.0L, 3.8L Ignition Control Module, Msd 83645 High Energy Gm Hei Ignition Module Sbc Bbc, Gm Ignition Module 1986 1985 1984 1983 1982 1981 1979, 1990 90 Pontiac Bonneville GM 3.0L, 3.8L Ignition Control Module, Accel 35361 ...
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www.nextag.com/gm-ignition-module/stores-html
www.nextag.com/gm-ignition-module/stores-html
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2 coils, the PIM(Primary Ignition Module), the mounting plate, and the Crank Position Sensor which is hidden under the mounting plate. There are no adjustments at all as the PIM and the ECM control the whole system. ... The only test I ve found for the coils in GM documents is secondary resistance.
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www.fiero.nl/ogre/gmdis.htm
www.fiero.nl/ogre/gmdis.htm
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Auto Repair Glossary IGNITION MODULE ... The ignition module itself may be located inside the distributor (GM and some imports), on the distributor housing (some Ford applications) or in the engine compartment. Some modules also control timing advance and retard.
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autorepair.about.com/cs/generalinfo/l/bldef_341.htm
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Can an ignition module begin to fail slowly producing these kind of symptoms prior to complete failure? I know they can have ... I have never had a GM HEI ignition module do that. They will usually as you said cause a no start condition. I am not saying that it is impossible, I just have never seen one cause that.
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www.cadillacforums.com/forums/ht4100-4-1-4-5-4/25293-ig...
www.cadillacforums.com/forums/ht4100-4-1-4-5-4/25293-ignition-module-failing-print.html
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Performance and Technical information on ignition modules ... Normally the ignition module, coil, spark plugs and plug wires are changed at one time. Any engine that has a few hundred miles on these parts may smooth out when they are changed.
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www.nightrider.com/biketech/hdignitionmodules.htm
www.nightrider.com/biketech/hdignitionmodules.htm
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an ignition module, ... 3X Reference High - The Ignition Control Module (ICM) receives an engine speed signal from the crankshaft sensor and passes it along to the ECM on the purple and white wire. ... To use the GM DIS module, build your MegaSquirt® as shown in the GM HEI section. To connect the module to MegaSquirt:
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www.megamanual.com/ms2/GM_DIS.htm
www.megamanual.com/ms2/GM_DIS.htm
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You problems could very well be the ignition module. It is easy enough and low cost to change. If you have changed things around, make sure you have the correct coil for an electronic ignition on a Ford. Some other or universal coils have too low of resistance and will cause premature failure of the box.
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www.realbig.com/detomaso/1999-10/159.html
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Car Ignition Parts, Coils, Modules, Distributors New and Reconditioned. All Makes. 01708 223225 ... A full range of ignition kits are available these are coil units with the ignition module.
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www.ignitionmodule.co.uk/
www.ignitionmodule.co.uk/
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