Emissions System Failure
rcraymond
12-09-2005, 09:04 AM
We did a complete tune up, replaced 02 sensor on the driver's side before the cat. Light went off for 1 day, came back on. Code says same 02 sensor and emissions system failure. If we replace the 02 sensor will it correct the emissions system failure. This is a 1996 Blazer.
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