[Engine] Rev counter

[Nik Buck]

Quite a complex problem .. So here goes!
We changed an engine (1.9 ) on a Berlingo.Replaced the three wire pump solenoid with a single wire solenoid.
I now have no rev counter & a battery light on the dash.
The van will then go into Eco mode after 10mins ( lose dashboard, headlights etc) as I assume it thinks the engine isn't running.
The signal wire coming from the alternator has continuity up to the ecu.
Battery/ alternator is charging at 14.4 v -normal
I have changed the crank sensor
Does the Rev counter pick up from the crank sensor?
Anyone have any ideas to a very specific problem!
Possible ecu fault but it didn't have this problem before we changed the engine!

[brajomobil]

Quite a complex problem .. So here goes!
We changed an engine (1.9 ) on a Berlingo.Replaced the three wire pump solenoid with a single wire solenoid.
I now have no rev counter & a battery light on the dash.
The van will then go into Eco mode after 10mins ( lose dashboard, headlights etc) as I assume it thinks the engine isn't running.
The signal wire coming from the alternator has continuity up to the ecu.
Battery/ alternator is charging at 14.4 v -normal
I have changed the crank sensor
Does the Rev counter pick up from the crank sensor?
Anyone have any ideas to a very specific problem!
Possible ecu fault but it didn't have this problem before we changed the engine!

It wold be best to connect the car to some diagnostic and see if diagnostic is showing revs.
That would exclude dash... 

Best regards,
brajomobil