Long story short, my downstream o2 sensor post cat melted. I have an aftermarket dp that has caused some issues and am wondering if a new sensor is necessary since the cat will be gutted, or replaced with straight pipe. From my understanding a cel will come on if the downstream o2 sensor is there or not. (Lack of cat)

Will there be a problem if I just leave the damaged O2 sensor in?

Also, How do I go about removing the code for the catalyst innefficiency via hptuners?

 

bump! revised Downpipe goes on tomorrow. Anyone?

 

HAHA new Downpipe went on and it sounds like ASSS.

Im deciding between a magnaflo cat or vibrant??? ANY OPINIONS????

 

i just installed the zzp longtube headers without a cat and sounded horrible... put in a big magnaflow resonator and it sounds great now... maybe look into a bigger resonator before you go back to a cat. unless of course u have inspections or some other reason.

 

No inspections for me. Car is registered in Florida.

I have the Hahn cat back and prior to removing the cat and the flex pipe the car sounded great. So I ordered a cat. $102

 

I had a header 3" dp with a magnaflow cat and a magnaflow exhaust with a 12" res i think and it sounded like ass. My buddy had a vibrant set up and it sounded half decent

 

Well Im putting the same cat that was in there prior... so it should sound the same as prior to these bs.

Hahn catback = no fart cannon raspy buzzy sound. with a cat hahahah


ANywho back on topic... I have my downstream o2 sensor duct taped to the heatshield. Hows that for ghetto. Car runs fine, just CEL