Question about 2004 Harley Davidson FXD - FXDI Dyna Super Glide
You should check for diagnostic code to see it you can get a lead on where the fault lies. Depending on how you check for a spark on TC motors, you may not get a spark and lead you to wrong conclusions. You must leave all spark plugs in place and use a known good or new plug in the leads to check for spark. Harley motors 2001 and later use compression detection to fire spark plugs. No compression means no spark. If you still have no spark on one cylinder, (the motor should fire up and run on the other cylinder -fact-) then it may be the ECM or wiring from ECM to coil. Did you check the HT lead? It will NOT be the crank position sensor as this supplies both cylinders.
Posted on Apr 03, 2015
Well if your coil pack blew while engine was running than it probably shorted out your ecm..take it off and look at the plastic. If any looks distorted like from heat than its probably bad, also you should check the stator output first. On all three sides..one side can be bad. Of course im talking from experience from working on import bikes.. being you have a twin each side is separate. Meaning each side has its own electrical components. Including ecm..It should have at least two plugs going into it..one for each side of motor...hope I helped good luck..
Posted on Apr 02, 2015
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Posted on Jan 02, 2017
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