Re: Help: P0420 code
Did the H02S peak over 800mV and below 450mV?
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2004 Marlin Blue Pearl Sequoia SR5 2WD; 60k miles
1991 Isuzu Trooper 2.6L 5spd 4x4; 103k miles
1993 BMW 525i M50TUB25 auto; 286,500 miles
ASE Certified Brakes Technician / Automotive Electrical Specialist
Independent BMW Technician
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