I got CEL for months and thought it was O2 sensors so I replaced both. Same code. Last year I already replaced with aftermarket exhaust manifold and that cleared code. Could it be exhaust manifold again?
I have the code occasionally too. I’ve already replaced the down stream O2 sensor. I do have an exhaust leak at the flange under the passenger rear door though, so I’m hoping when I fix that it’ll clear up.
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