Welcome to the FirebirdV6.com/CamaroV6.com forums.
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
If you have any problems with the registration process or your account login, please contact contact us.
If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.
I have a 1999 firebird v6 that is a CA car. The shop states my O2 sensors are working fine. I bought a stock style Y-pipe with cats about a year ago and have been living with the code, but now I can't pass smog.
the code is P0420 Catalyst System Low Efficiency Bank 1
Any thoughts on how I can correct this. I am not sure if the cats I have are for a California car and the CA cats are super expensive.
Any idea If an O2 Sim would correct this issue and whereI could get one. I checked summit, Jegs, ebay and google and no luck.
Is a computer swap possible as it would be cheaper than a set of Ca cats. I no longer live in CA
oooo, i thought you were going through CA inspection; if the cat's are bad, then don't just ignore the code, get rid of them or get new ones. The cats will clog up eventually and cause the car to run horrible. to get rid of the code, an O2 sensor would do fine. Computer swap won't do anything for the code as it will come back.
first off our cars have one cat. converter. Next, did you put the rear o2 sensor back on when you swapped the ypipe and cat? Did they use a highflow cat like a catco or carsound cat? If they used one of those you will need your pcm tuned or an 02 sim from zzperformance
I am running a stock style cat, except I bought in it in AZ. I ordered the o2 Sim from ZZ performance and hope this will do the trick. Thanks for the hook up
Did they use a highflow cat like a catco or carsound cat? If they used one of those you will need your pcm tuned or an 02 sim from zzperformance
Interesting. I have a highflow cat (Magnaflow) and am getting the P0420 code. Why do high flow cats trigger this code? I've had the converter for a few years and am just now getting the code. Emissions time is in 2 month. Sim time?
We process personal data about users of our site, through the use of cookies and other technologies, to deliver our services, personalize advertising, and to analyze site activity. We may share certain information about our users with our advertising and analytics partners. For additional details, refer to our Privacy Policy.
By clicking "I AGREE" below, you agree to our Privacy Policy and our personal data processing and cookie practices as described therein. You also acknowledge that this forum may be hosted outside your country and you consent to the collection, storage, and processing of your data in the country where this forum is hosted.
Tweet
Comment