Metro ECU and solenoid valve operation
Turbo Mini Forums

As a matter of interest and an attempt to learn more.

Q1
Assuming you had a standard metro turbo set up using the ECU and solenoid valve.
This operating to keep 4psi up to 4500 rpm and then 7 psi after that.
If the actuator was changed to 8psi would the ECU and solenoid control at 8psi to 4500 rpm and then 12psi after that?

I am not really sure of the workings of the ECU. I assume the 4500 rpm reading is taken from the same place the rev counter signal is taken from. The pressure pipe from the plenum that runs to the fuel regulator is teed off to the ECU. I assume it is giving information to the ECU to control the solenoid valve as well.

Q2
How would increased boost affect the fuel regulator that is originally sees 4psi and 7psi?
Q3
How does increased boost affect the ECU signal?

I have looked at all sorts of threads and the net but can’t find the answers.