extending OEM o2 wire

[jheeno]

Hi all.
I want to relocate my factory o2 wire.
OEM exhaust position was before the mid cat as illustrated in the pic below


Now I have a new Turboxs TBE but I have welded a bung before and after the cat.
I want to put the OEM o2 sensor after the cat and my zietronix wideband sensor before the cat.

I think the OEM o2 sensor operates 0v-1v.

will it just be an easy splice and solder job ?
I was advised to use crimp terminals.
anyone have any advice or experience to offer ?
here was the instructions (it was also to aid in avoiding the a CEL that appears when a new TBE is installed on an 06 wrx

The below threshold is due to there been no cat now before the rear sensor, it sees unburnt fuel 3 times on a cruise it sends the code off, if it keeps coming up, the fix is to put a bung after the mid cat and put the rear sensor after the the cat, wires need to be extended, and this is a 100% fixed cure.

The 06-07 seems to be more fussy with regards to this code than the pre 06 ecu's. disabling the code i believes doesn't allow it to be in close loop on cruise, but not something i have tested.

...


You can cut the wires and add more to the length, but don't solder them, just use crimp terminals, stainless wire doesn't read right when they are soldered.

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[jheeno]

bump?

[srREXed]

DO not cut or splice 02 sensor wires. You will make a poor decision by doing so. If you must extend 02 wires, buy a kit that plugs the harnesses. By all means do not cut and splice them even if you use solder.