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Another Question
I finally got most of my blazer's issues worked out. It is running now, but I just had the exhaust system replaced from the cat back. Now it shows a code 44. Could anyone please tell me any advice on what to replace? O2 sensor? or cat? I was wondering if the extra pressure on the exhaust could have anything to do with the cat or just the 02 sensor is bad? seems weird it only happened after replacing the pipe and muffler.
Also, doesnt the 94 model have 2 oxygen sensors, and if so, which one is code 44? the book also lists a code 45 as an 02 sensor. (44=lean, 45=rich if that helps any)
Thanks.
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