Duramax 2004.5-2005(LLY)
Hello, I have a 2005 that has been tuned using a diablosport predator to +65hp. Last week I got a check engine light so I read it with the predator and I got P2564: Turbocharger Boost Control Position Sensor Circuit: Signal too Low
The truck is also having a strange turbosounds when I let off...