Ml270 cdi inlet manifold

[tom woods]

Hi just after a bit of advice,my ml won't rev above 3000rpm and there is no pulling power, i did a check on the ecu and its come up with inlet valve port,I'm guessing it means the stepper motor????? are the flaps open and the motor closes them or is it the other way? cheers for the help in advance :bannana:

 

[giusepppe]

It is as you say, they are open, and the motor closes them.

 

[tom woods]

Thank u

 

[a111r]

Yes, default position is open. Try the 4.7K resistor mod, bridging the motor's plug.