1999 Volkswagen GTI Catalytic converter

1999 VOLKSWAGEN GTI
90,000 MILES • 4 CYL • FWD • MANUAL
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JIMBO1976
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Failed Mot on CO =0.49 @2650rpm (fast idle) but passed rest of emissions test?? could this be sensor rather than a cat replacement??
Oct 5, 2010 at 5:56 PM
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