Fuel switching tanks 07 Volvo

[Chamberpains]

Pressurize and check the plumbing for the air actuator on the turbo. There is an on/off test using Insite. Turn the system on and soapy water everything up over the engine back to the control module on the driverside. Even the steel braided parts. Replace and fix any leaks. That system is super sensitive to pressure problems post actuator control module because there's no feed back to anything to make adjustments if it's wrong.

Also make sure the actuator itself is traveling the full distance. Unilevers posted some time ago what it was but I can't find where it's at.