05 V70 2.4 MT CODES P0026 and P07C1

[Spencercat]

Car has 263k miles, and had been regularly serviced by the dealer, including Castrol bulk dino oil every 7500 miles. I changed the oil last week to Castrol high mileage part synthetic and just got these codes (read by Torque). One I recognize, but cant find anything on the other.

Could this be something that is gunked up with sludge? What is the diagnosis? Thanks