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Thread: code p2443

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    Default code p2443

    hey guys new to the site looking for a little help. recently had a set of Doug Thorley LT headers installed along with a magna flow catback on my 17 crewmax, truck had 4500 miles on it when installed drove it home maybe 20 miles and the code 2443 posed up took it back to the dealer that installed them (Toyota certified) and they were stumped. asked around a bit and still have got nothing, asked another Toyota master tech and he has no answers. I called Doug thorley to see if they had heard of anything like that but they just told me I need to get the o2 simulators cause 2 cats were removed to put on the headers but I'm not getting the cat codes thats what the whole mystery is haha. if that is the answer can anyone confirm that? or has anyone ever ran into this problem? just looking for a little imput and some help lol thanks guys

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    Default Re: code p2443

    I'm no master tech, but that sounds like that secondary air injection system. Part of the emissions systems...
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    Default Re: code p2443

    Yeah I got that part but why is it coming up with that code? Cause I removed the 2 cats and didn't put the o2 simulators in? Why is it reading the valve is stuck closed on bank 2 and not cat codes is the question

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    Default Re: code p2443

    like you stated maybe not installing the simulator o2, or maybe a hose they forgot to plug in somewhere or maybe they failed.. I'm not sure, but here are 2 links that may help you out.
    http://tundrageeks.com/forum/showthr...ight=limp+mode

    http://tundrageeks.com/forum/showthr...ight=limp+mode

    edit.
    here is another one in case you've already seen those..
    http://tundrageeks.com/forum/showthread.php?t=1078
    Last edited by blackdemon; 08-30-2017 at 09:51 PM.
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