This code means that the fuel is to lean. You have problem with your oxygen sensor in the bank 1 (location: exhaust manifold).
Trouble code P0770 means:Shift solenoid E malfunction
The Computer has detected a malfunction - The cheapest way to diagnose what is wrong take it to your nearest Auto zone and have them check the code for you. Most do it for free
If you mean the brake master cylinder, then squealing might mean that you have a vacuum leak.
Trouble code P0420 means:Catalyst system efficiency below threshold
has no power to fuse box
SE: Sports Edition
A car with a key in the middle
What does code 2238 on 2003 Camry mean
Tire pressure
Heated 02 sensor code
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
it means there is a problem with the charging system.