lq4 swap 02 sensor help.

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Dec 15, 2013 | 03:00 PM

sick_46

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lq4 swap 02 sensor help.

What I have is a fox body with a lq4 swap. the computer that was used was fom a 03 escalade. the wiring harness is from a 02 escalade. I need to replace the upstream 02 sensors. Every part house shows a different o2 sensor for the 02 vs 03. The only difference I can find is the harness length.
What sensor should I buy. I would think with them both being 4 wire that they are the same sensor. What about the universal 4 wire units? Any good?
Thanks for the help!!

Dec 15, 2013 | 06:49 PM

i r teh noobz

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Look on Lt1swap.com. There is a section for the 02 sensor differences. One type grounds to the engine and the other grounds inside the PCM. You will need to modify the harness for that combo.

Dec 15, 2013 | 08:53 PM

sick_46

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Is there a way to look at the 02 sensors that are already in the car to figure out what I have?

Dec 15, 2013 | 09:02 PM

406chvycamaro

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Wouldn't recommend the universal sensors, they aren't very good. Your factory sensors should have a Number on the side that they can cross reference at the parts store to something they carry