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Which o2s?

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08-06-2017, 03:17 PM

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Which o2s?

Trying to figure out which o2s I need for my 5.3 swap. Engine is a '99 5.3. Harness is a blue/green pcm I believe from '04. Planning on using just the front o2s.

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08-07-2017, 08:45 AM

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O2 sensors always need to match the year of the PCM.

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08-07-2017, 11:49 AM

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Quote:

Originally Posted by JoeNova

O2 sensors always need to match the year of the PCM.

Any way to be sure what year my pcm is from or is there a certain year range that used the same o2s?

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08-07-2017, 12:12 PM

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http://lt1swap.com/vortec_o2_sensors.htm

Do some reading on this link and figure out which one you need.

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08-07-2017, 06:10 PM

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[QUOTE=4EyedTurd1;19695635]http://lt1swap.com/vortec_o2_sensors.htm

Do some reading on this link and figure out which one you

Everything I've looked at is saying it's an '04 truck pcm like I thought. Lt1swap says '03+ (6.0s) used isolated ground o2s.

Last edited by sean byrd; 08-07-2017 at 06:22 PM.

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