Understanding Oxygen (Lambda) Sensor B1, S1 Error in VW Polo III 1.4 MPI 2000 6n2

Question

Hello all :arrow: I have a Vw polo III 6n2 2000. 1.4 MPI I still have a lambda probe error when I plugged in VAGA, There is an error, code: 16518 - Oxygen (Lamda) Sensor B1 S1: No Activity. Prose for help, it's the first mistake - the second one is now out of date. Which probe is not working...

tomekmazepa · Answer

Hello,
For me, B1 S1 means Bank 1 Sensor 1 or lamba probe 1.
You can still try to swap the probes then if it is the probe's fault then S1 should change to S2.
I use another program so I have everything written there exactly these are only my presumptions
Greetings Tomek

grala1 · Answer

The bank is which side.
You have 4 cylinders, not a V system, so you have one exhaust, i.e. only bank 1.
Sensor is which probe.
1 is regulatory and is in front of the catalyst and the other is behind the catalyst for testing its effectiveness.
The error concerns the probe in front of the catalyst.
The probe, broken wire or e.g. lean LPG mixture may be damaged.
Connect a multimeter between the black and gray probe cable, set it to 2VDC and see what it shows at idle and what when suddenly pressing the accelerator pedal into the floor on a warm engine.

Kosaa123 · Answer

Okay, if in the picture what I attached Controler: 030 906 032 CG - this is the probe number? If I had to buy, I found a used one and only look for such a number?

grala1 · Answer

This is the engine driver number. You will find the probe number only on it or on the website after VIN. Buy only from the higher shelf. Bosch should probably be there.

Kosaa123 · Answer

Because you know someone gave a replacement there, and there are no numbers on it: C How do I buy if I don't know the numbers of this Probe.

ociz · Answer

The engine you have AUD or ANW. The first probe is broadband. I have never encountered any substitutes.

jacek074 · Answer

After the driver number it comes out as an AUD engine. The first probe for this engine has no. 030 906 262 J

grala1 · Answer

How many probes have wires, what colors?
Most likely service.
After VIN they will advise you what should be there.
If broadband is Bosch or NTK and 500 PLN in the store you have to count.
If 4 wires or less is about PLN 300 for Bosch.

Kosaa123 · Answer

yes yes the AUD motor and probe have 4 wires

grala1 · Answer

So if it has 4 it's normal and not broadband and you can check it with the meter as I wrote. Two white, black and gray cord.

ociz · Answer

It is not surprising that it does not work, because there is to be broadband, unless you look at the one behind the catalyst.

Kosaa123 · Answer

I don't mean the catalyst all the time

jacek074 · Answer

Give a photo of this probe's cube, maybe the installation has been modified. In AUD, the first probe should be broadband, the probe number I sent, selected from the elsa for this engine.

Kosaa123 · Answer

Something like that is Added after 40 :

Understanding Oxygen (Lambda) Sensor B1, S1 Error in VW Polo III 1.4 MPI 2000 6n2

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