Suzuki: Check Engine Diagnostics, fuel level sensor, emission control system

Question
I had a check engine light, and checked it . It gave me 3 problems, and i have no clue what they mean, if u can help me, it'll be great .

Problems:

O2 Sensor Circuit Low Volts (Bank 1 Sensor 1)

Fuel Level Sensor A CKT Range/Performance

EVAP Emission Control System Malfunction

Those are the three errors. Please Help and THanks

Answer
I'm just giving you a place to start from, not a certain fault.
It's probable the oxy sensor voltage is low becaus e the sensor is failing.
Similar possibility with the fuel sensor, OR a wiring/connector quality problem.
Anything from a loose gas filler cap to some kind of exotic failure.
You need a factory service manual to read to get an idea of the diagnosis paths that are appropriate.
scotty