Ok all vacume lines are new waste gate solenoid is new get 18 by at actuator no boost guage first item on my list to purchase. Arm leading to waste gate is tight but can be moved with force. Will move but not easy. Could be a leaking actuator as it is harder to move with lines reversed but can...
I have a 95 k1500 s code engine and have been trying to pinpoint a code 78 problem. Had exhaust leak at crossover pipe which is fixed. Have plenty of vacume. Was getting code 78 and 36. Have new solenoid and vacume lines. Got codes to go away by changing the vacume lines location on solenoid...