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#1
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Trouble code P0422 Main Catalyst,Bank1 Below Threshold
I got this code on my 98 SL500. I recently replaced the catalytic converter on the driver side and the pre cat oxygen sensor.OEM parts. Is this code oxygen sensor related or catalytic converter. Im a bit lost on what is wrong here and what it should be replaced. Thanks for reading
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#2
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Bank #1 refers to the PASSENGER side of the engine & car!
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
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