How many have the downpipe with a high cat and have not had a CEL, and how may have had a CEL? And if it does come on, will it put your car in limp mode??

 

With my Vibrant DP, I've gotten a couple of CELs.

 

never had one, with 2 different downpipes on 2 different cobalts. it doesn't put the car into limp mode, it doesn't do anything except light up on your dash. doesn't affect the car in any way. safe to delete

 

Hmm I wonder if it is the same with a SC though?

Ahh I c. What about the spark plug anti fowlers? Do those really help?

 

i have a sc. no need for an anti fouler, just delete the rear 02 sensor, or buy a code reader and delete the code.

 

ZZP header and DP with cat, noo CEL for me.

 

Vibrant header downpipe i have a CEL

So how do u delite the code?

Thank you

 

if you or someone you know has hp tuners you can shut off the rear 02 sensor. or you can delete it with a code reader, but that way it may come back. the cel you get from a high flow isn't a bad one, and doesn't hurt the car at all. the sensor is basically just reading a different amount of air than it's programmed for.

 

my random technology downpipe through a CEL since there is a lot more flow than stock, i put 2 spark plug antifoulers and that took care of the code.

 

I dont have a cat so I have one for sure lol

 

Yes i got a CEL, only because the damn rear oxygen sensor was stripped to hell when i took it off, and i just zip tied it under the car until i can find a new one

 

what does this do? just extend the distance of the sensor to the exhaust line? like spacers?