Was supposed to be picking up a project in Colorado last weekend. Truck had other ideas. Got a couple hours from home and it threw a code and went into limp mode which is 2k RPM max and no boost. I pulled into a small town and fueled it up and it ran fine. 38 miles later it fell on its face again. Rolled around under the truck for a while and couldn't see anything wrong. Drove onwards and it continued to have trouble. Changed the fuel filter, that didn't help. Finally decided to really go at it.
spent 4 hours screwing with it. Got back on the freeway and it wasn't fixed.
Dropped the trailer at a family friends house and drove the truck home 280 miles. Couldn't reproduce the issue unloaded. I tried on a couple big hills close to home. Had a 30mph head wind and layed into the throttle which resulted in 98mph on the speed limiter, uphill. It even turned the check engine light off.
Two codes. One was low fuel rail pressure and the other was turbo vane sensor. Both can cause the limp mode. Parts are ordered and I have a line on a tech2 scanner to run some tests on it later this week. Crappy way to spend a birthday for sure.
Dropped the trailer at a family friends house and drove the truck home 280 miles. Couldn't reproduce the issue unloaded. I tried on a couple big hills close to home. Had a 30mph head wind and layed into the throttle which resulted in 98mph on the speed limiter, uphill. It even turned the check engine light off.
Two codes. One was low fuel rail pressure and the other was turbo vane sensor. Both can cause the limp mode. Parts are ordered and I have a line on a tech2 scanner to run some tests on it later this week. Crappy way to spend a birthday for sure.