I wonder if anyone ever got lucky with o2 spacer/bung - on 996s, to eliminate CE light, I dont feel like swapping my exhaust back to stock, my emissions are due, and i think thats the only option i got.

 

they didn't for me but new o2's did stop the cels. but this is decatted. I need to recat to pass again.

 

Try those 90 Deg O2 extenders...those may give you the best shot and just reset the ECU before you test. It usually takes about 7-8 cycles for the CEL to come on. Good luck!

 

^ what I tried.

 

yeah, well I'm going to give another try, I just purchased O2 oxygen sensor angled extender spacer 90 degree with Mini Cat Scrap M18x1.5's - Ill keep you guys posted, yeah, I know about the cycles;;;

 

I have cleared codes with extenders but with the visual inspections I doubt they would pass here in Pa, I used these years ago now keep my cats on lol.

 

we dont have visual ,and visually my cats are there. "_"

 

In pa I don't have to pass visual as I drive my cars less than 5000mi a year but if more yes.

 

in tn we have visual. its amazing to me every yr they place the mirror under the front tire look for the cats and put the mirror away!! i laugh every time !

 

hahahah front tire? Well maybe you have 2 engines.

 

I used them in mine and they worked perfectly. I put them in last summer, passed my smog test and no CEL's since.

 

What kind/brand are you using 911MTB? Just to make sure everyone can see what works.

 

Evo8 I should get it by the end of this week- I'm going to test it and see if they work. - it also depends on a tune/exhaust system etc, it may not FIX - but its worth a try! lol, I have one spacer allready on the car, but still throws CE, so i'm going to test them.

 

Just talked to my smog guy here in CA. He said you can get away without any CEL lights on your dash, and be dumb and happy, but once hooked up to the actual smog machine via OBD, you'll fail if there isn't a differential reading between the two O2 sensors. It can detect if the cat is present/functional.

 

These are the bungs I used:

Here in Ontario Canada the smog test is done through the OBDII port and mine passed without issue. Part of it passing is making sure you drive your car a significant distance and various conditions before the test. If it tests "Not Ready" you fail the smog test.