problem substituting 2.5L voyager 2003 engine
 

Hello. some months ago the engine of my voyager year 2003 2.5L diesel broke.
i like this car and want to repair so i bought another engine.
the mechanic is having big problems because after mouting it the electric test shows a fault and doesnt start.
he told me that the two engines are not identical in one detail. the connector to the tachometer sensor. one engin has 2 wires and the other has 3.

i wonder if somebody can help me with suggestions, infos or links about this issue.

thanx in advance
Giorgio

What did the replacement engine come from? and what fault does it show?

Richard