Herrera3636
Thread starter
- Joined
- Aug 27, 2023
- Messages
- 22
So will the extension make the code not reappear?
I would not replace the sensors. Don't fix what isn't broken. Pull the old sensor, install the extender, reinstall the sensor, clear the codes, hope they don't come back.I’m sorry for all the questions, I just want to make sure I understand. So I shouldn’t change any sensors at all, just add the extension? And that’s to the rear?
You sent me a link to purchase an extender. Will that one also work for my QX? Or do I need a different one?Yes it will, that one may have 2 rear o2 sensors the code will be P420 for bank 1 and P430 for bank 2, on the QX bank one is the left (drivers) side. The Subaru uses only one main cat for both banks so it comes up bank 1.
I received the extension. This goes on the front O2 sensor?Yes it will, that one may have 2 rear o2 sensors the code will be P420 for bank 1 and P430 for bank 2, on the QX bank one is the left (drivers) side. The Subaru uses only one main cat for both banks so it comes up bank 1.
Does the extension go in the front or back?No, only the front cat has sensors the rear cat has no monitoring. No need to replace the o2 sensors either just to instal a extension.
RearDoes the extension go in the front or back?
How would I find out?Also in Post #1 OP states he's also getting a brake light and cruise light flashing.
Does Subaru really do all this for catalyst efficiency?? I thought they did for wheel speed sensors but not emissions?