Boost issue
Hi guys i was wondering if anyone could help? Since owning the car it's always had the same issue...and thats when you put your foot down in 4th or 5th gear it will build boost and then drop, then build and drop constantly on the motorway with your foot down.
I originally put this down to being that the car was a little scrappy when i bought it, it had a remapped td04. However now I've changed quite a lot on the car including a VF30, pink injectors, STI TMIC, RMC fuel pump along with other bits. But the car has the exact same symptons, builds to 22 PSI, then drops to 10 etc.
Ive taken off the boost solanoid and cleaned it out but hasnt made a difference. What else can there be? Or is the car suppose to be like this and im a dum dum head?
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