This weekend we pulled the camper out again. Saturday when we left the fuel gauge was showing empty but I know we had over a half a tank. About 20 miles later I noticed it was showing 3/4 tank, and it has worked since then. Just one of the many gremlins I am finding in this pickup.
Today on the way back we were pulling into a 20 to 25 mph head wind. Just before we got home we headed up a hill so I gave it a little pedal. Suddenly the turbo boost gauge jumped up into the red and the check engine light came on. I backed out of it a little and the turbo boost went back down to normal, but I had no power. Giving it some pedal the RPM's never got over 1500, even with the pedal mashed to the floor it the engine did not get over 1500. Got to town 3 miles later and it seemed to run fine. Unhooked the camper and moved the truck to park it, it ran fine.
Before this the turbo was running fairly steady around 10 to 12 boost.
I am showing P0460, a P0463 and a P0234 trouble codes. I am assuming the first 2 codes are from when the fuel gauge wasn't working, the other must be the turbo.
What should I be checking? Or is this just a hiccup that these engines get once in a while?

 

A quick google search shows that the p0460 and p0460 are codes for the fuel gauge. My 03 truck occasionally has fits with the fuel gauge as well. The p0234 is a code for overboost which means the pcm saw more boost pressure than it was supposed to.

 

I searched the codes to see what they were. The fuel gauge codes don't bother me right now, I am sure it is from whatever the problem was when my fuel gauge stopped working for a few miles. I am more curious why the torbo boost would jump up so high and set the code for too much boost. I wasn't on the throttle hard enough, it shouldn't have boosted above 20. What could make it boost too much?

 

Nobody knows about the powerstroke turbo and why it would overboost?