what is the meaning of the PO440x2, PO446x2 and PO770x2 codes

Question

engine check light is on, I make the regular checks of all the fuel and it still remains,

Answer 1

HI there

P0440 means the computer has discovered a leak in the evap emissions system.

P0440 TOYOTA - Evaporative Emission Control System Malfunction

Read more: https://www.autocodes.com/p0440_toyota.html

P0446 means there is a leak in the evap system possibly caused by the vent control valve.

P0446 TOYOTA - EVAP System Vent Control Circuit

Read more: https://www.autocodes.com/p0446_toyota.html

P0770 means there is an issue with shift solenoid E in the transmission. This could be the result of low or dirty transmission fluid.

P0770 TOYOTA - Shift Solenoid 'E' Malfunction

Read more: https://www.autocodes.com/p0770_toyota.html