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|Electrode Tip Material:||Double Platinum|
|Thread Diameter:||18 mm|
|Wrench Diameter:||13/16 in|
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Q:Dear Sir or Madam
A:The DIS System stands for Distributorless Ignition System, It was designed to replace the mechanical distributor system (HEI) in controlling the ignition secondary coil voltage. This system is comprised of the following components: Crankshaft Timing Sensor: To trigger the ignition system.This sensor sends a signal that feeds timing and RPM information to the DIS and computer module., Camshaft Sensor: Driven by the camshaft and provides information on the cylinder position for the ignition coil and fuel system, Ignition (DIS) Module: Receives the signal from the crankshaft sensor and the camshaft sensor. Its major purpose is to use the information supplied to it to control the ignition coils. The reason it does this is to ensure that they fire in the correct sequence., Ignition Coil Pack: Comprised of multiple ignition coils. The DIS module controls these coils by means of coil leads. Main advantage with this system was that it provided improved economy and performance with reduced emissions.