Have you checked the Crankshaft Position Sensor?
Mine reads 814 ohms cold and 900 ohms hot.

For voltage, it reads .842 v ac cold and .986 v. ac hot. You'll need someone to crank the engine for the voltage test.

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible