i have a 09 ss with dejon short ram dejon charge piping and dejon catless dp...when i first put my dp on there was no cel..but a little while after it came on..the code was p0420...what im wanting to know it lets say i go with a trifecta tune...would this clear my cel for good?

 

You can ask vince to disable that cel for good, or you can try getting an o2 extender from ebay to see if it solves the problem.

 

thanks bro appreciate it

 

Yes, but! If there is ever an issue that code will not come on, and you could wreck something.... IMO turning off codes is not a good solution. Fix the problem why the code is coming up.

 

well thats what i am wanting to know...why would it thow a cel...seems as if no one else has had thois prob that i can find with these cars...whats a way to take care of it the right way?

 

Not familiar with their products, "maybe" it is how they position their O2 boss? Like I said I have no idea about their products.

Put back on your stock one, and if it goes away you know it is that item.

 

I didnt look up the code but its most likely because there is no cat there anymore. So if its a code for the downstream O2 I wouldnt worry about having problems with disabling it. It would cause about as much damage as disabling the windshield washer fluid light...lol

 

O2 extender will do it

 

well there were 2 codes...which were p0420 and they said catalyst threshhold efficiency..i know its b/c there are no cats now...

 

I don't think dejon did a lot of testing with this downpipe, i've seen the p0420 code pop up after 500miles, the position of the o2 bung is crucial. All the other vendors usually angle the bung at 45 degrees and pull it back an inch or two from the pipe to make sure no cel is tripped. I'd start with the o2 extender first, they're under $10 on ebay.

 

i had a po14e come up yesterday

 

thanks...i mean is it a bad idea to even be driving around like this...and is there a certain o2 extender im looking for or...?

ay bowman whats that code? you have the same dp?

 

i have a zzp its air fuel metering it hasent came back since then i dunno

 

can someone tell me if they think driving with the code p0420 is ok..it means catlyst threshhold efficiency

 

Ur o2 sensor is too close to the pipe, u need a angled chamber or a code disabled

 

Are you sure it wasn't P013E? I had the same one but it came on twice and has been gone ever since . I'm wondering because 14E doesn't show up as a DTC on GM list .

 

no, it's fine to drive like that. The rear 02 sensor which is setting off the code is only used to monitor the efficiency of the cat. Mine has been broken for a good year. The reason you're getting the code is because of the hi flow cat. It's just an emissions thing.

 

x2 its just an emissions thing you can permanently turn it off with trifecta or hptuners

 

the cure is to not buy dejon crap. lol

 

almost any aftermarket cat and/or downpipe can give you the same code.

 

Yea someone needs to explain to me how "the proper angle and placement of the 02 bung" can make up for the fact that the cat is not there anymore. If they are just moving and angling it out of the exhaust flow so it doesn't see it anymore then it basically useless anyway.

 

basically by taking it out of the direct stream, it lowers the readings, which makes the sensor think the cat is working. The code is set when the reading from the primary and secondary sensors are too close to each other.

 

Not Mine Here's Why:

 

I have the same one . I threw a p013E code twice .......so just incase yours throws it .....don't get nervous .....I cleared it and its been gone ever since ( about 500 miles now)

 

What's that specific code mean? I'm too lazy to research