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o2 Question

TimMorgan

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I have a 2019 GT Manual car with Kooks Long Tubes.
The car currently has the included o2 extension for the upstream o2 sensors.

My installer did not install rear o2s.

I noticed this during my spring time review.
I went to Ford and ordered the downstream o2s.
They ordered me Ford part JR3Z-9G444-C.

Those downstream sensors do NOT seem to have the correct connectors.
It appears to have a 4 pin connector with an open "U" shape hole.

The connectors on the car appear to be the same as the upstream ones.
Similar looking to what these would go into:
https://www.americanmuscle.com/ford-mustang-oxygen-sensor-upstream-front-driver-side-jr3z-9f472-a.html?utm_content=Exhaust - Oxygen Sensors|Ford&T5_Var4=410577&utm_source=google-pla&utm_medium=shopping&T5_Var2=shopping&utm_campaign=AMM+Mustang+Parts+Medium+RLSA&T5_Var3=blue&intl=0&dialogtech=ppc&gclid=Cj0KCQjwyZmEBhCpARIsALIzmnLDamqV8hsCs_v4MZ3xDczERDAPqCLHcqtpvlYva55DA0DtAahxYf0aAgX5EALw_wcB&gclsrc=aw.ds



Forgive my ignorance... Im not the most mechanical.

Does anyone know if I need an adapter of some sort?
Perhaps a different downstream o2?
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Rollin'

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My downstream sensor harness extension did not fit without modification but it still looks different than the sensor you have indicated. Hope this picture helps. Cheers

A97E0F32-8CB4-46B7-B157-0F6E34B2FD89.webp
 

Cory S

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Wrong sensors. Why didn't your installer put the factory rear O2's in their rightful place during the install?
 
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TimMorgan

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Wrong sensors. Why didn't your installer put the factory rear O2's in their rightful place during the install?
What are the correct sensors? Do you have a part number or link?
 

Mdtaylorjr

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On mine the front O2 sensors had black connectors and the rear were gray. Also no extensions were required on my setup. There was enough cable for all 4 to reach.
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