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could be the crank sensor (rotation) would not be sending information to the pcm which erased the check engine light?
Ok since this positive current going to the coil now and has no pulse, the pulse simulator put the hall sensor and nothing, but it still was not the crank sensor, all clocks and lights are working on the panel, even if only to check that engine no, i will try crank sensor before pcm ... if cranck check engine light should come on?
Ok, I'll do the crank sensor replacement. Finally, when unplugging the crank sensor, if defective, the check engine light should go back to work in exact moment ?