Question about 1997 Saturn SL
Although the picture is of a 6 cly model the location is the same HO2 sensors are mounted in the exhaust system before and after the catalyst HO2..1 is the up stream Before the cat and HO2...2 is down stream of the cat if your code is bank one sensor 1 its the upstream and bank one sensor 2 is the downstream
Posted on Jan 04, 2013
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Posted on Jan 02, 2017
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