Header Leak Causing AVCS Codes?
 

I installed a jdl header a little over two months ago and made sure there were no leaks at the time of the install and checked a week later just to be sure. Everything was still tight, the header to over pipe was slightly misaligned but I couldn't visibly see any gaps or feel air rushing out.

Now 2 months later my car popped the dredded P000B code, I've never had any problem before so I cleared it. A few days later i popped the code again but accompanied with the P0014 code. So I decided to take the jdl header off and put the stock one back on and take it to the dealer. When i took the header off I found some clear evidence of slight exhaust leak coming from the driver side and a leak coming from the header/over pipe connection. Could this be the cause of these codes or is my car having symptoms of the failing avcs? Any helpful information would be appreciated!

It's highly unlikely these are the cause as a manifold has no impact on the AVCS. There's obvious AVCS issues, both codes are for exhaust cam on bank 1.

Could be oil related:
http://www.gt86ownersclub.co.uk/foru...21.html#176421

Alright I just wasn't sure if it may have affected that or not. When i got the first p000b code I contacted a local toyota tech that I befriended when I got the car, he told me to change the oil as well and see if it comes back, which I did. I'm guessing mine has succumbed to avcs bug.