Tacoma_TDI
Well-known member
I recently finished installing an ALH in a swap but I'm having a weird issue with the turbo. With the engine running at idle, I heard a sound similar to rushing air coming from the exhaust and noticed the turbo actuator was maxed (rod fully sucked into the actuator). I've triple checked the vacuum hose routing and that isn't my issue. When I unplug the N75 while running then plug it back in the issue disappears. I also don't get any codes thrown for my MAP sensor. Is it normal for the N75 to have vacuum in the hose going to the actuator at idle, or is my actuator diaphragm worn out? Thanks!