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Fri Jul 29, 2005
22:32
So, last night I took a stab at setting the readiness codes on our A3 Golf. After replacing the cracked ignition coil, I wanted to give it a try to see if that was the cause of my DTC indicating a rich-running condition. I am still getting that same DTC part-way through the readiness procedure, so now I am leaning toward the upstream oxygen sensor as the culprit. The duty cycle for the upstream sensor is intermittently out of spec, I have noticed.

I meant to post this last night, but I just didn't have the time.

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intake air preheater hose
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