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Prev Professional Automotive Repair Technical Discussions for August 5, 2020
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2011 Chevrolet Malibu LS 2.4L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1G1ZA5EU8B
First came in with P0420 and found bad front catalytic converter. Replaced with after market converter, both 02 sensors, and exhaust headers. Checked operation and OK. Came back with same code. Found bad front converter bad due to rear and front O2 senso... Trouble codes: P0420, P0506
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