There are 4 oxygen sensors on an LS series engine. They are talking about disabling the rear 2 which are not used in any fuel calculations. The rear 2 are checking that the catalytic converters are present and working properly. It's fairly common to delete the rear 2 in engine swaps.
Quote:
Originally Posted by aknovaman
I see in the first post you refence a section on
Section A - Disable the Oxygen Sensors (O2s) Codes
Why in the world would you do that? WANABE tuners do that because its a hack and a crutch for not knowing how to tune the necessary tables to make it run correctly. Doing so can make the car run poorly when weather conditions are different than when the tune was done. They put it in open loop so they only tune the open loop AFR table and because they don't know how to tune with them enabled.
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