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Question posted by albvfb on August 28th, 2013

Check Engine Light Back On

My engine light came on about 2 weeks ago. Took to advance auto and code said oxygen sensor issue. Took to another source to verify and he told me it was 3 out of 8 ignition coils going bad so I repalced them all. Drove truck today and check engine light came back on. My second opinion also told me that my catalyst converter was showing up as an issue also. I dont think it is but may be the oxygen sensor. He told me the converter was like 1100 dollars. Should I go with the oxygen sensor replacement first?

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