Solenoid problem

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Hi I have got a 03 wax turbo and it playing up engine light comes on at high boost it’s like it’s overboosting at 1.5 bar the ecu code say solenoid problem any advise also before this the car would some times only boost to 0.5 bar on and off





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If it's not been mapped 1.5 bar is about double the boost the fuelling will be set for , so try to stop using full throttle until you suss it .

You could try checking the vac lines for splits from the boost solenoid to turbo outlet ,actuator and any other ones on your set up .

Also remove the boost solenoid spray some brake cleaner in it to clean it out ,let it dry and refit it 

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