I recently had a ZZP midlength header DP installed.

It does have a high flow cat, and I'm still getting that CEL for catalyst efficiency below threshold. I used to work at Advance and Autozone when I was younger so they let me borrow their scanners for a few hours if needed. Even when I clear the codes its no more than a day before I start driving like an idiot and throw that code. I get that along with the infamous 171 , system to lean or w/e that one was.

The worst part about that system too lean code, is the fact that I use the fujita intake. It uses the huge plastic air collector then just connects to the CAI piping to go into the wheel well. The only places where it could leak is at the filter, where the hose goes on the pipe, and at the throttlebody. All of which have been tightened VERY tight.

Knowing I was cruising around with one CEL code was troubling enough. Now knowing that I have two is really unnerving. Is there a "high performance" universal 02 sensor that I can install that will make the computer understand this flow was INTENTIONAL. Can this stuff be fixed w/ a simple tune?

 

RE: the Cat CEL -- I haven't done this to confirm -- there have been threads posted where people are using 2 sparkplug anti-foul plugs, drilling the centers out to install the O2 sensor in and stopping their CEL.

They install the O2 sensor in one anti-foul plug, install that plug into another anti-foul plug, and then installing that combination into the DP.

Might try that....

 

ark sells a cel eliminator for that im gunna buy that when i get my h/dp, it just takes the o2 sensor out of the way of the flow exhaust so you dont get a cel works well from what i have heard.

 

Well my concern isn't so much the CEL light, as much as possibly the gas mileage change they may cause.

I'd imagine if a cel is being thrown the engine is doing something to "try" to compensate?

 

If the CEL is from the HO2S2 sensor -- that sensor is used to determine if the cat is working. The HO2S1 sensor is used to monitor engine parameters.

 

P0420 doesnt affect anything. Its just to monitor the cat. Theres no such thing as a high flow compatible O2 sensor, because the problem isnt the sensor, its the cat/your tune(if youve got one)

Ceramic core highflow cats are garbage. They set codes, thats it.(ZZP even tells you this on their site ) Its because they dont have the same storage capacity as the OEM cat. Getting tuned may fix it(definitely will fix it if you have the P0420 set to nonreporting status), getting a metallic core cat will fix it. The plug antifouler trick does work surprising well on about 90% of cars.

 

I'd have to ask quadracer what the core is I have no clue. I bought my DP from him.

 

If its a ZZP dp its almost certainly got a Magnaflow/ceramic core in it.

Only people I know of that use metallics are Random Technology, CIA, and Vibrant

 

Roger that. Oh well. No biggy its just a cobalt. I dont care too much. If its not effecting my gas mileage, I dont give a hoot.

Thanks for the quick replies.

 

sorry to thread jack, but which hi-flow cats are the best for being smog legal? I know a lot of companies advertise they are but I don't always trust sales pitches

 

Random Technology, CIA, and Vibrant

 

Reading the whole thread does help.

 

thanks Maven. useful knowledge as always

I read the whole thread smartass. The part where Maven mentioned the three aforementioned companies only touched on ceramic v. metallic cats and who uses what. Not how well they stay within the bounds of the law.

on a lighter note, thanks for the useless post

 

You know the search button does wonders too.

Edit, no reason to call me a smartass, using common sence woulda helped you through it.

 

dude I've been around long enough that I've heard that like a million times.
I honestly felt like being lazy and just asking since we were already on the topic and I knew that someone with knowledge (Maven) was watching the thread.

But that's cool man, I'm not even going to argue with you.

Obviously you > me

jerkoff.

 

Every night?

 

you bet. 4 times a day

 

Seriously Tru2nrtt you may not intend it but you do come off as a smartass on just about every occasion I've seen thus far. You need to RE READ your posts and maybe even have a girl friend read them as well to screen them for rude sarcasm, ignorant insults, and all around shitty attitude.

 

Anyway.... Your welcome boostaddict.

Where in NJ are you and are those G6 wheels on your car in your gallery?

 

Just get Vince at Trifecta Performance to send you a tune with the Catalyst Code Disabled.
You'll get a few more Hp too from the tuning

 

I live in collingswood...yeah they're g6's. I'm considering getting rid of them though

 

I am only about an hour down the road from you.

Why you thinking of getting rid of them?

 

idk sometimes I hate the way they look on my car. maybe I would feel differently if I put my coilovers on and it was lowered. hahaha I don't feel like doing all of that work. and I'm tight on money. Idk, still debating on keeping the coilovers too haha

 

You can get the code turned off/deleted if you get tuned. Usually via hp tuners, but I see you have a 2.2 so you probably need a trifecta tune.

 

Srsly it is just the internet and if straight to the point offends you here real life must be hell. I only intend to offend people who have offended me which include you since you ran your mouth about shifting an auto trans when you dont even know how to smoke test an exhaust. Apparently these "professional" friends you refer to dont know **** and instead of realizing the difference between mechanical shifters(what they were most likely refering to) and cable/electronic shifters(what we have) you just keep insisting on ignorance.
Haha, that was pretty good bro.