losing power on hard pull

[Chamberpains]

I'm actually saying the electronic solenoid may be faulty and commanding the actuator to different places other than where the ECM is saying it should be. It may or may not leak air. I had 2 fail electronically and 1 fail with an external leak. The electronic failures are hard to find. Monitoring boost levels on power and jake is one way to see it.

Rawze has used CT to override the ECM and command the actuator to a set point. Then measured the physical actuator travel to see if it in the appropriate spot.