Ford Repair Questions? Ask a Mechanic for Answers ASAP
On the top of the turbo at the VGT actuator. Make sure it is physically connected. With the key off, verify the actuator can be moved and then when released it springs back. With the key off for at minimum 30 seconds. Have an assistant turn the key to the run position while monitoring the VGT actuator. It should sweep through its normal range of motion when turning the key on. If it does not move but the linkage is OK and moved freely with key off, check for battery voltage to the actuator on the Green/White (GN/WH) wire at pin 1, and check for ground on the Black/Yellow (BK/YE) wire at pin 2. If the power and ground are OK, suspect a faulty VGT actuator. If the actuator cycles as it should when turning the key on, perform the Key On Engine Off (KOEO) and Key On Engine Running (KOER) self tests with a scanner to be sure the code sets as a hard fault. If no codes return until the vehicle is driven and the truck has a severe lack of power, check for a restricted Catalytic Converter or Diesel Particulate Filter.
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