New beetle fault codes

[sand scorcher]

Hi,
I have a 2001 1.6 beetle and i got the trouble code P0030. Although this was not in the Haynes manual i found that it is O2 sensor. My dealer told me few months ago that my O2 had problem but i haven’t repair it. Few days ago i got P 0171 code (fuel trim, bank 1 lean fuel) and today i got a new code P1250 (fuel level too low). Are those codes related to the O2 sensor or my car start falling apart?
what you think i should do before visit my dealer?

[noR]

Buy an O2 sensor and replace it.

Probably the front one.

[sand scorcher]

so i can be sure that this is the problem?

[noR]

Not really. But if your error code says it's an O2. And the dealer verifies that the O2 sensor is bad. Yes, it could affect your fuel mixture and cause it to go lean.

I'm not sure what code P1250 could mean, it could be a whole different problem.

I think your best plan is to replace the sensor, clear the codes, and see what happens.

If you buy the sensor from autozone, they may offer to clear the code after you replace it. Ask them.

[sand scorcher]

I can clear the code by my self this is no problem. I think i buy a new one and see what happen.

[sand scorcher]

The code P 0030 means O2 Sensor Heater Circuit, Bank1 (Correct me if im wrong) That means that i have to replace the front sensor? or the rear?