oxygen sensor location

1998 MERCURY SABLE
6 CYL • 2WD • AUTOMATIC
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LALOCON
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I need to replace a oxygen sensor on a 98 mecury sable. Thr trouble code lists the fault as the upstream sensor bank 1. Which is the bank 1 ?
Apr 9, 2011 at 8:19 PM
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RASMATAZ
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Where the no.1 sparkplug side
Apr 9, 2011 at 11:17 PM
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SATURNTECH9
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See the diagram i posted.
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Apr 9, 2011 at 11:18 PM
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