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87 760 no spark 700

posted by  bigfoot on  Sat Sep 17 07:55 CST 2005
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last visit: Tue Oct 7 07:46 CST 2008
[RELATED]

did some more testing. there are 3 wires to the crank sensor 1 is the shield/ground and the other 2 are signal, when i unplug it and crank over the injectors do not click, i get a voltage reading across the terminals of the sensor too so it seems to be working. plug it in and crank it over, injectors and fuel pump work, still no spark, take a trip to the local volvo junkyard(my friend deo) he gives me a coil and ignition modual off of his running car to try. put the modual in behind the air filter ......nada, put the coil in......nada. take my stuff to his house and put my coil and modual in his car vroooom. for haha's i decided to try changing the crank sensor, ......nope.
so does anybody know what i should test for at the plug for the modual, the blue wire i get 12v key on, what readings should i get from the other wires, and does anybody have a wiring diagram for the ignition circuit they can email me? thanks chris

ps: think im gonna go fix the old 760 gle turbodiesel, that never let me down till it started loosing compression 371,873 miles.
gotta do something, riding the motorcycle in the rain to work is gettin kinda old real fast.






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