Check your v power sensor .thats where the vnt line or vane starts from. I had same problem. Vpower sensor controls the turbo boost power .
finally my egr problem has been solved. time to enjoy my coronado
i have 06 coronado 515hp w/egr did a complete o/haul ,new pistons/sleeves/ bearing and have no power.no chk eng light but these dash code contrll...
