Ok i got my evo IV this week, the problem i am having is that there was an HKS EVC 5 boost controller that was shipped with the vehicle and it was stolen in Barbados of the vehicle and right now the 2 vaccum lines that was connected is not plugged into anything so the car is stuttering/hitting fuel cut around 3000 rpm so. The stock boost controller solonoid is there still. My question is the actuator vaccum line goes to which nipple as well as where the compressor side vaccum lines goes to which nipple?

Would greatly appreciate any and every help i can get.

Thanks much in advance
Richard Flemming

 

pictures would help.

 

will try and get some pics tomorrow.

 

If it has two ports, one goes to the wastegate actuator and the other to a vacuum port located on the output side of the turbo. It would help if there were arrows on the OEM solenoid. If there is an arrow pointing away from the solenoid, that is to the actuator, and the arrow in is vacuum from the output side of the turbo. If there are now direction arrows, just plug in and take it for a spin. If it overboosts, then you know you need to reverse the lines at the boost solenoid