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Were can I buy a yellow sticker ideal valve, I've had a couple second hand ones and they seem to let boost out at 1.5 bar, as I running 2 bar it's very anoying,
How would an idle control valve cause you to be .5 of a bar off boost ?
Well the valve allows air into the manifold for the car to idle/ tick over, when u floor it the valve should shut allowing the turbo to push air into the manifold st 2 bar, if the valve is not sealing then it can't creat the boost,