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When a scan shows your oxygen sensor needs replaced does the upstream or down stream or both needs to be replaced on your 1996 Geo metro 1.3 4-cylinder?
Tncfarmer
If they are the same sensor... replace the easy one first and if the code returns, take the old one and replace the other one
Wiki User
∙ 15y ago
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Is the upstream oxygen sensor the same as the downstream oxygen sensor?
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