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O2 Sensor Wiring Diagram 94 5.7 gmc - 1994 GMC Sierra

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1 Answer

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Use the right O2 do not use a generic and always replace both sensors if it has a V6. If you don't do the above you will likely get another error code I know this from years of experience on this type of job.

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O2 sensor wiring digram

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The wiring diagram shows the wiring color code, Power rating and connector plug used. The wiring diagram explains the vehicle's electrical connections with color code. It's a bit complicated to understand.


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O2 sensor

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O2 sensor wiring

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Sep 11, 2012 | Cars & Trucks

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po134 is o2 sensor bank 1 sensor 1
po161 another o2 sensor
p1345 crankshaft position sensor
possible cause for o2 are vehicle control module (PCM) or wiring

Jun 03, 2011 | 2000 GMC Denali

1 Answer

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It Should be located some where on the driver side in the wiring harness maybe tucked back in or some one could have cut the wire

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The oil leak is a good clue, it gets into the connector and shorts the signal.

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