Throwing 4 Codes P0441,0455,0138,0606

[Jwall]

I never had any codes thrown that stayed until i got my exhaust build done. I have long tubes and y pipe before. now its urd equal length. apr y pipe and custom dual.
I will make sure urd sim is still working but any advice will be greatly appreciated thanks.

Codes:
P0441
P0455
P0138
P0606

there was only three until this morning. if i get truck up to around 100km/h reset codes they wont come back until i restart truck.
i beilive the 4th was p0455... or 441.

Note.. does not affecf any driving conditions nor at idle.

 

[Gators Taco]

Check these out: ( PO 441/ 455)http://engine-codes.com/qa/12876/2004-toyota-highlander-6cyl-codes-po0441-po0455-po0446 and (PO 138)http://engine-codes.com/p0138_toyota.html and (PO606) http://engine-codes.com/p0606_toyota.html