Bruno,

124/M103 86-92 300E used EZL Basic ignition system and CIS-E Injection System.

86/89 - EZL system - used Control Module, Ingnition Coil, Crankshaft Position Sensor, Engine Coolant Temp Sensor, THrotle Position Sensor and Ingnition Distributor. 90/92 - EZL added the intake temp and pressure to the system data. Later version added the camshaft position and knock sensors.

1989 300E has a sensor attached to the front of the engine mounted on the cranckshaft pulley.

I need to know if there is a special way it has to be installed to work properly.

Thanks for your reply.

Bluzygent