BIOTDI1375
Member
A while back I was driving up a steep grade on the highway and once I got to 65mph there was a dramatic loss of power but at that time no check engine light. I bought a scanner, got the P1557 "Charge Pressure Contr. Positive Deviation" code and have done the following since.
From what I've researched, it sure seems like the vanes on the turbo are clogged at the high boost position and thus the limp mode. Does that sound correct? If so are there good turbo cleaners out there or am I facing removing the turbo and having to do it by hand?
At least the car is functional but just not on highways at the moment.
- Replaced the Boost Pressure Control Valve
- Replaced the EGR Pressure Converter Valve
- Replaced the air filter
- Replaced the fuel filter
- Checked and found no vacuum leaks
From what I've researched, it sure seems like the vanes on the turbo are clogged at the high boost position and thus the limp mode. Does that sound correct? If so are there good turbo cleaners out there or am I facing removing the turbo and having to do it by hand?
At least the car is functional but just not on highways at the moment.