Header Leak Causing AVCS Codes? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Webby · 03-30-2017, 05:56 PM

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!

Kodename47 · 03-30-2017, 07:18 PM

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

Webby · 03-30-2017, 07:28 PM

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.

03-30-2017, 07:18 PM	#2
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,633 Times in 1,113 Posts Mentioned: 156 Post(s) Tagged: 1 Thread(s)	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 __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

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03-30-2017, 05:56 PM	#1
Webby Member Join Date: Jun 2015 Drives: 2015 Firestorm Red Scion Frs Location: United States Posts: 18 Thanks: 7 Thanked 18 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	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! Last edited by Webby; 03-30-2017 at 06:32 PM.

03-30-2017, 07:28 PM	#3
Webby Member Join Date: Jun 2015 Drives: 2015 Firestorm Red Scion Frs Location: United States Posts: 18 Thanks: 7 Thanked 18 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	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.

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