CH613 turbo actuator

[MackFarmer05]

So this is on our '03 E7 427. From the moment we bought it the boost always seems to stay what I this is high whether loaded or empty, 25,000#-90,000#. While trying to research it the other day I noticed while parked if I throttled up the actuator would move and my boost would rise to about 15psi@1400rpm. Is this normal? Could the valve that controls the actuator be stuck open?

[mp8_macky]

15psi @1400rpm sounds a bit high to me. we are talking about reving the truck, not driving it.

if you are driving it, that could be ok.

[bbigrig]

If it's a CH and not a CX (vision)

The late 03 Visions had an ASET engine with a vane turbo charger which would have an actuator. The 03'CH's had a waste gated turbo charger on the 427/460's. Or was it just the 460's. The waste gate dumps excessive boost when it opens.

Just asking because if I remember correctly, both set ups were available in 03. The CH with a non egr/vgt engine. The CX with an egr/vgt engine depending on build date in 03.

[MackFarmer05]

Sorry I typed wrong. The truck is a CX. The EGR had been deletedoing and yes those pressures are parked and idled up with cruise control. While running empty it always runs around 30 psi empty and mileage sucks. I guess I'm just used to my 93 CH. Is this normal?