| http://www.w3.org/ns/prov#value | - Patent US20050055169 - Methods of diagnosing open-secondary winding of an ignition coil using the ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsIn a first embodiment, the present invention is a method of detecting an open secondary winding, including the steps of enabling an integrator, resetting the integrator, detecting an ionizat
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