SES after G3
 

Installed G3's on saturday and drove approximately 250miles without any problem and my engine pulls a P2a00. I know all of the vaccum lines have been properly attached to inake tubes. Anyone every come up with a solution to this code or have a smilar problem? I read the 15 threads that concerned this code and no answer was seen. Any helpful pointers would be greatly appreciated.

Hmmmmmm... This is a catalytic converter issue...


Try cleaning the MAFs anyways

Feel free to text me (310)eight nine three-4207

i've had the 0420 and 0430 ses. Didn't get this one til after cai. maf's are clean, never touched the metal or with dirty hands.

... The oil from the K&Ns might trigger it, but it's still mainly an O2 sensor



Do you have HFCs or TPs???

I have hfc's from ARK. They installed them the day after christmas :) and had the 0420 and 0430 codes pop up. I installed the brass bung extensions from z1 motorsports. None of the wires were pinched or twisted to the point of damaging them. The 420 and 430 codes cambe back and Then I installed the G3's. Im kinda lost as far as why this is popping up.

ok...UPDATE. I checked the maf sensors and there doesn't appear to be any oil on them. Does one know how to clean them or the procedure for doing so? Also checked the crankcase vent hoses and they are all properly seated and clamped. Throttle hoses are properly mounted as well. I had the HFC's on for close to 2k miles and only had the common codes with that. I installed the bung extensions this past weekend with the G3's and know that I did tigthen them down really well so to the point where it popped a little bit (thats how I knew they were tight) and installed the 02 sensors with them. Please help or give me some guidance on what it could also possibly be? I read that the G3's lean out fuel mix, is this the common code behind installing the G3's?

You have to buy MAF cleaner from a auto store. I don't think that's the issue with G3's. But doesn't hurt. G3's are not going to lean out unless other mods are added. Mostly has to be three breather mods before this happens. But by that time you should be getting a Uprev and tune.

I'm being told the P2A00 code is the secondary O2's. Not sure myself. If so Uprev can delete that code. I'm currently throwing this as of last week for some reason. I've had the same setup for years. But I have been removing my exhaust a lot lately. This code also is thrown for exhaust leaks. So check that. I have and find nothing. There are many reason one code can be thrown. But if Uprev can deleted, it wasn't a needed code. If this is indeed at secondary O2 code I thought mine was deleted already. Soooo I'll have to get with my tuner.

YeahI am headed to dealer tomorrow to have them check it out.

Spohn is correct, it's the secondary O2 sensor, bank 1 (driver's side?)

And the dealer, unless they're REALLY cool isn't going to help you since you have HFCs

It's the primary sensor NOT the secondary. Also I believe bank 1 is the passenger side.

Got the code myself a few hundred miles after my LTH and CBE were installed. Never did find out what was causing it. Just recently disabled the code in Uprev for the time being. Once I get tuned I plan on enabling the code again to see if it comes back.

Also this is one of those codes that requires actual drive time to come on. It's not just "problem and on" like other codes.

Quick google search gave me this: P2A00

Yea that sounds right. Mine happen after a few hundred miles after my headers but I had a tune also. Guess I'm going to perform the mixture ratio self-learning procedure. It's pretty easy.

How does one do that?

I assume this is covered in the service manual somewhere? If so where?

If you bump up to premium membership those codes go away:p