You were 100% right. Didn't hold for long and expanded and no longer sealed. I cleaned my original BPV with some brake cleaner. All is well I guess ? I still get a whirling noise like it is spooling. Today drove pretty good though.
I am just wondering if a bad o2 sensor could be a issue with the engine not giving good power all the time? Any good ways of undoing the o2 sensor without removing all the turbo heatshields? I have the newish o2 sensor from the 93 legacy L which I replaced not to long ago.
Good cheap BPV ?
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