Help! Code P2442 Secondary AIR System Switching Valve Stuck Open

Joined
Jun 21, 2015
Messages
68
Anyone had this issue? Apparently its common on the Tundras. I really don't want to fool with the dealer. Looking for real personal experience and possible DIY fixes.

Thanks!!
 

bamma

SILVER Star
 
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Nov 2, 2006
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687
Location
Spokane
Anyone had this issue? Apparently its common on the Tundras. I really don't want to fool with the dealer. Looking for real personal experience and possible DIY fixes.

Thanks!!
Check the hoses first, but as you said this is a common failure on the Tundra land late model 4th gen v8 4Runners. Buy the bypass kit and be done with it (assuming it is the exact same setup on the 200):

Air Induction Pump Bypass Module - AIP Valve Bypass - Toyota Tundra Forums : Tundra Solutions Forum
 
Joined
Jul 3, 2013
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90
Location
Idaho Falls
This just happened to my buddy's work truck. His employer had him take it to Toyota. Total bill to fix this problem on his Tundra was almost $3500. I have read about the above bypass module working.
 
Joined
Jun 21, 2015
Messages
68
I just ordered the Hewit-tech bypass kit. $349 plus $70 overnight shipping. Hopefully I'll be able to get it on this weekend. Ill let you guys know how it works out.

Thanks
 
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May 5, 2014
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4,777
Location
Utah
I had one (ebay version) on my Tundra. I never installed the block off plates but the rest was a 30 second install.
 
Joined
Jun 21, 2015
Messages
68
Worked great. Its kind of a pain in the a** to install because the block off plates are between the engine and firewall. But once installed I haven't had any other issues. Cleared engine codes and good to go since. It did sit outside for 3-4 days in single digit weather without being crunk up and apparently I had some moisture in these lines and it froze up. I had a CEL and same 2444 code. I just let the engine run and warm up then I cleared the codes and it went away again. No other issues. If you currently have this issue/code I would definitely recommend this kit. Good luck!
 
Joined
Aug 13, 2018
Messages
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Location
Houston, TX
Worked great. Its kind of a pain in the a** to install because the block off plates are between the engine and firewall. But once installed I haven't had any other issues. Cleared engine codes and good to go since. It did sit outside for 3-4 days in single digit weather without being crunk up and apparently I had some moisture in these lines and it froze up. I had a CEL and same 2444 code. I just let the engine run and warm up then I cleared the codes and it went away again. No other issues. If you currently have this issue/code I would definitely recommend this kit. Good luck!
Great! Thanks. I appreciate the advice and will be installing the kit.
 
Joined
Apr 20, 2019
Messages
3
Location
CA
Anyone know of a fix for a 2013 LC? My dealer replaced the pumps and the check valves $3000! The P2442 cade has come back twice since. The LC has 125K on it, but only 5 years old, bought April 2014. The LC is at the dealer now. I'm thinking there is a wiring or pressure sensor problem. I don't see a bypass kit available.
 

99Cruiser

 
 
Joined
Nov 24, 2003
Messages
92
Location
Austin, TX
Anyone know of a fix for a 2013 LC? My dealer replaced the pumps and the check valves $3000! The P2442 cade has come back twice since. The LC has 125K on it, but only 5 years old, bought April 2014. The LC is at the dealer now. I'm thinking there is a wiring or pressure sensor problem. I don't see a bypass kit available.
Hewitt is doing beta testing for 2013+ so you might want to contact them.
 
Joined
May 5, 2014
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4,777
Location
Utah
Could also be the pump drivers. Two of them, behind the fuse box. Each about the size of a deck of cards
 
Joined
Apr 20, 2019
Messages
3
Location
CA
My problems continue. After replacing the pumps and valves again the P2441 came back in three weeks. The car is back for the fourth time to the dealership. They don't know what to do. They say Toyota doesn't know what to do. Any thoughts? They are keeping it connected to the diag and cold starting it twice a day trying to capture more data for toyota.
 
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