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cat converter

  1. 9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    Hi there , i have an issue with my saab 9-3 1.8t . It keeps showing a fault on the charge bypass valve . I have changed it and keeps showing fault . when i rev the engine it seems to smell very hot and the egg smell from possible cat converter . could this be fault on p0033 ? need some help please