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Boost on and off
Guys,
A mate of mine is having a problem with his R33 GTR, he popped round in it tonight and took me along the road and it's as if the boost is coming and going all the time seems worse under load. The boost builds then just drops off then builds again. He's tried my ECU in his car and checked the AFM's he's even fitted an after market boost controller and it's still the same.
Any ideas what it might be?
Cheers
Del
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