utilizes the same crank target wheel 15 as the dual sensor method as with the dual sensor method the two types of target wheel teeth have the following tooth geometry a narrow tooth has a tooth period of 6 degrees high region of 1 2 degrees and low region of 4 8 degrees a wide tooth has a tooth period of 6 degrees high region of 4 8 degrees and low region of 1 2 degrees the 58x encoded target wheel of the present invention can be synchronized using a number of methods a conventional timing approach may be used by comparing the time between the active crank edges to find the synchronization region 41 this method looks for a short long short time relationship between subsequent active target wheel 15 edges to identify the synchronization region 41 the short long short relationship is specified by two calibrations the crank_long_threshold calibration which specifies a mathematical relationship to identify the short long part of the synchronization region and the crank_short_threshold calibration which specifies a mathematical relationship between the long short part of the synchronization region when the following two conditions are met the crank synchronization region has been identified period ue89e ue89e n 2 period.