Ive got a problem with the ISCV , basically it isnt working . Tried a new one and thats the same , its just not opening up . Could this be an ECU fault . Ive tried both ISCV to the battery with and they both open then close when i take them off . Its on a L8 ecu , Not the loom as its a new RYAN loom , just doing my head in . What voltages should i have , im getting 13v when i test both connections to negative with the valve connected so theres power going through the solenoid . What voltage should i get if i unplug the valve and test across the pins ? im guessing it should be 13 v or there abouts but it isnt . All checks have been done when the engine is cold .Its had all new sensors about a year ago when i rebuilt the car and runs fine other than the ISCV .Any help would be appreciated .