Question about 1993 Buick LeSabre
If you have fuel at the fuel rail and have injector pulse, then you likely have no spark. The spark system contains, plugs wires, then the wires go to coil packs. These coil packs are mounted on top of an ignition module. The ignition modules has two wires that go to the crankshaft position sensor which provides the power.
If you have spark in some cylinders, then the coil pack is bad. If you have no spark what so ever, then test the crankshaft position sensor with a voltmeter and the wire harness disconnected. If you don't have an ohm or volt reading, replace it. If you do have a reading, then test the ignition module.
Do check all fuses first.
Posted on Oct 15, 2010
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Posted on Jan 02, 2017
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