Re: FCM Problem
 

If the FCM box is not closed, the hall effect sensor on the circuit board will not read the turbine of the flow sensor

Close the box and repeat test 4 and 5.

Re: FCM Problem
 

Yes, this really helped. Thanks again, Richard.
Nozzle was full of dirt - probably it got there during these several month of laying under hood unconnected.
Currently everything is fine and flow sensor shows 7 bars in "TST" mode.
You said that box should be completely closed - should I re-seal it to be 100% sure that is sealed completely?

Re: FCM Problem
 

The circuit board is epoxy dipped to protect it from the environment. But the modification you did with the black and brown wire may need further moisture protection. May be tap up the gap of the FCM will do just as well.

Re: FCM Problem
 

The next step will be taking the car for a drive and play with the trimmers.

Re: FCM Problem
 

Thanks, Richard. Everything works just great.
I would like to build up direct port system. I think this will make sense. Which parts will be required? Can I ask to to assist and make a quote?

Re: FCM Problem
 

How many cylinders?

Re: FCM Problem
 

standard R4