i own a sierra rs cosworth stage 1(chip-31 actuator-GGR exhaust 3'' full system)
the boost is set to 1 bar, but the last 2 days i noticed that the pressure not exceed 0.7 bar,when i press the pedal to the floor
i check the boost hoses ,its ok
can you give me any solutions?is it the outside temprature(now the weather in Greece is to hot)
is it the actuator?is it necessary to reset the ecu?(and how i will do that?)