hyundai no start
2009 Hyundai sonata 2.4 L , cranks but no start , no codes, no spark but has injector pulse and rpm reference on scanner cranking, has power at coils but no ground signal from computer when cranking, cam sensor changes 5v to 1 v cranking slowly, fuses seem ok , tried 2nd known good key, have not tested crank sensor yet, manual shows mass air sensor but there is none it appears to be speed density instead ?any ideas?
ECM sends ground signal to coils the same as injectors. If you have no ground the ECM is bad.
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