george.bryant Posted January 28, 2007 Share Posted January 28, 2007 Recently my Skyline (L20et, uses a optical trigger system same as a 83 280zx-t, inside the dizzy), started running bad (misfiring alot) and has now got no spark from the coil. i've tried 2 different, afms, ecus, distributors, igintion coils (3 and one brand new), ignition modules (small assembly attached to coil bracket) and ignition ht leads but i have no luck. I'm really really stuck here and was hoping that posting in this part of the forums may get me more help. Thanks for reading and I look forward to your replies. Thanks! Quote Link to comment Share on other sites More sharing options...
getZ Posted January 30, 2007 Share Posted January 30, 2007 I would have to see a set of schematics on that engine to know for sure, but on the 280z engine there is one more component in between the coil and the ecu called an ignitor. Basicly it is a transistor used to apply voltage to the coil since the ecu does not put out enough power to drive the coil. I had to use a digital o-scope to actualy see the ecu driver signal. A handheld multimer has to slow of a respose to pick up the trigger signal. Quote Link to comment Share on other sites More sharing options...
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