97' Eldorado ETC check engine gives all O2 codes - need help
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97' Eldorado ETC check engine gives all O2 codes - need help
I have a ’97 Eldorado ETC that I picked up at an auction this week. It has current PCM Codes of: P0135, P0139, P0146 & P0155. I looked these codes up and if I’m not mistaken, they are all O2 sensor codes. Given that it is highly unlikely that all O2 sensors are failing, I wanted to reach out to the experts in this forum for some input. Thanks in advance for your help! cal
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Oct 6, 2020 09:45 PM