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Found 1 result

  1. Hi Team, Boost gauge has recently started reflecting 19-20psi boost spike on initial wide open throttle (WOT) then returns to 15.9psi (1.1bar) after a few seconds. My understand is that 1.1bar is stock internal wastegate (IWG) pressure - could someone please confirm this? Turbo is VF28 and vehicle is V5 STI. From the symptoms I believe that my IWG diaphragm has a hole and is leaking boost which is why it's taking 19-20psi to open it - could someone please confirm or deny this? Please provide a fact based response if you choose to do so. Secondly, for the duration that my wastegate is not efficiently releasing waste, 2-3 seconds, are my injectors pushing the required fuel into the cylinders? TIA. Brett
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