test pipes cause P2A00/P2A03

so ihave berk test pipes on my 06 350z i havent got codes till recently i would get the P0240 which is the cat below efficency threshold. so i got defoulers from autozone and put those on and i no longer get that code. but now i started to receive a new code which is the P2A00 & P2A03. can the test pipes be causing this?
my current mods are MREV2, 5/16 spacer, berk test pipes, hks hi power exhaust, and a popcharger

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Comments

Anonymous

Youll get codes unless you get it tuned

06/24/2017 - 17:24 |
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Anonymous

No. Those codes are caused by your upstream o2 sensors. You have a leak, bad fuel pressure, bad injector, or just a bad sensor. The leak will be on the intake side

06/27/2017 - 02:24 |
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Anonymous

So anything before the test pipes, you a possibly leaking from somewhere

06/27/2017 - 02:25 |
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Anonymous

🤔 i hadnt tightened down the plenum well enough after installing the mrev2. i have tightened it down and havent gotten a code yet so maybe it was a leak😅 i hope. i checked my injectors and they are working fine i doubt its the sensor the car barely has 40k miles

06/27/2017 - 02:32 |
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