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Turbo BOV question
Posted by pilot_65 [Email] (more from pilot_65) on Thu, 19 Apr 2007 22:58:28
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Recently replaced my Turbonetics T3 60 with Jaks turbo. Initial boost decreased from 22lbs to 18lbs, I adjusted the P pot "SPG9 stageII" 1/8 turn clockwise, bringing the boost up to 25lbs.. 3 things going on, maybe unrelated to each other..Firstly, a whistling sound like escaping boost, which intensifies as boost increases (which may well be the stripped threads on the water injection nozzle which I siliconed in), a fluttering when boost is dumped vs a solid whoosh, and lastly, fluctuating boost pressure under full acceleration, (bounces fairly quickly and irradically between 23.5 lbs and 25lbs.. Not a quick reduction as when the knock sensor would kick in.. Any ideas on the cause(s)? I have a turbo xs bov.. I have the oem O2 sensor.. Wondering if among other things, a wideband might be needed.. Thanks
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