LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

o2 sensors, same for front and rear right?!

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Old Jun 14, 2006 | 11:31 AM
  #1  
AlwaysCode390's Avatar
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Exclamation o2 sensors, same for front and rear right?!

I have two bad and decided to buy all 4 replacements since I will be under there. The two fronts are the same as the two rear right? I just buy 4 of the same sensors?! This is on a 96 z , thanks ---
Old Jun 14, 2006 | 11:34 AM
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Re: o2 sensors, same for front and rear right?!

No... the harness connectors are different on the pre-cat and after-cat sensors.
Old Jun 14, 2006 | 05:13 PM
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Re: o2 sensors, same for front and rear right?!

If I splice everything together the actual sensor is the same right? There is some AC DELCO ones on Ebay and they say "work for front and rear" , comes with wire splice kit.....or should I just do it right and buy harnessed ones? Thanks ---
Old Jun 14, 2006 | 05:27 PM
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Re: o2 sensors, same for front and rear right?!

Splicing isn't the best way to treat an O2 sensor. They use stainless steel wires. The sensor output is in millivolts..... a small bit of corrosion or a sloppy splice and your whole system is fubar.
Old Jun 14, 2006 | 06:17 PM
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Re: o2 sensors, same for front and rear right?!

Great info, thanks guru ---
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