maybe the ebpv? mine cycles everytime i start,and then opens up.

 

I dont even hear mine, I just figured since it was warm out

 

mine will cycle even when its warm. is yours unplugged or gutted?

 

Tell you the truth, I have no clue

 

Unplug it to be sure, don't want to have it get stuck closed. Probably the mechanism in the pedestal is shot. Does it kick on fine in the winter?

 

If it is unplugged, gutted, malfunctioning, or gone all together you will get that code. Mine is gone as I have the h2e and I get that code all the time.

 

I only have had the truck for about 4 months.

As for having it unpluged, I have had it unplugged on 2 of my other trucks but never had a code

 

Brad, is this on the 97? I'm not sure if this is a 97 thing only or not (probably not)

Here's some info from the "1997 MY OBD System Operation Summary for 7.3L Diesel Engine":

Exhaust Pressure Regulator (EPR) Valve Check Operation:
DTCs: P0475 – Exhaust press control valve malfunction
Monitor execution: Continuous
Monitor Sequence: None
Sensors OK: Not applicable
Typical Monitoring Duration: Internal to Chip
Exhaust Pressure Regulator (EPR) Valve Check Entry Conditions: No entry conditions
Exhaust Pressure Regulator (EPR) Valve Check Malfunction thresholds: Actuator driver status indicates open/short

Here is probably a better summary: "Exhaust Back Pressure (EPR) Regulator"

Hope that helps. Cheers!

 

Brad if it is a Cali model truck it will throw that code when unplugged but not on the federal trucks.

 

Ok, that must be the issue. It is my only cali truck