Roush still throwing codes

[Glenn]

2019 with a dealer installed supercharger was telling me wide band O2 sensers were bad?
sense then, I stalled headers with green cats no money spared ! now I still getting these codes.
need help O2 sensers now or what ?
I have read that you are suposed to use the Holley brand O2 sensers for cars that have superchagers on them, they cost a lot more than the ford ones, but I don't know witch part number to get?
P.S. Still has the original tune installed !

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[engineermike]

Is that the same code it was throwing with the stock cats?

 

[Glenn]

Is that the same code it was throwing with the stock cats?

nope before it was telling me the o2 sensers were bad.. can't remember what the codes were but they are different

 

[Glenn]

nope before it was telling me the o2 sensers were bad.. can't remember what the codes were but they are different

Should I just buy new o2 sensors ? but i need to know what part number to get .
Don't think I should get the ford ones!

 

[engineermike]

The ford o2’s, front and rear, are fine for superchargers. But having extensions could cause problems. Also, the aftermarket cats may just not be efficient enough. It’s a common issue with them.

 

[Glenn]

The ford o2’s, front and rear, are fine for superchargers. But having extensions could cause problems. Also, the aftermarket cats may just not be efficient enough. It’s a common issue with them.

So what should I do ? I do have extensions...

 

[Glenn]

So what should I do ? I do have extensions...

Should I get all four and see what happens?

 

[Ruiner46]

I doubt the O2 sensors are the problem. The green cats just aren't as clean as the stock cats. This is the same code you get when you run catless headers.

 

[engineermike]

Should I get all four and see what happens?

With those codes I doubt it would fix anything. O2 sensors rarely fail actually.

 

[J17GT]

I've been told having something like these for the rear O2s will help get rid of that code.

https://fasthemis.com/i-23894159-vi...r.html?q=Vibrant+O2+Sensor+Restrictor+Fitting

 

[DF19RS3]

Use Defoulers..Cats are flowing more than allowed. Tuners wont turn off the code per the EPA

 

[NGOT8R]

I also thought any cats on a blown application would eventually get blown out in a literal sense and look something like this:

https://www.mustang6g.com/forums/threads/kooks-green-cats.183805/

or in my case this (on a nitrous application), with the hi-flow cats that came with my LTHs

I think I got lucky and caught mine early enough. The exhaust note changed at the drag strip and caused me to investigate and thst is what I found.

If you can, maybe consider saving the cats for a rainy day if you will and put on some deletes for max effort and less chance of any failures.

 

[engineermike]

Not any cats, but most cats.

 

[NGOT8R]

Not any cats, but most cats.

Oh okay, well maybe the OP will be good. Mine only lasted 7K miles before they said bye bye, but I did use nitrous more frequently during the last 10 miles or so.

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