Lambda sensor error

[BJohan]

I am looking for advice on my A2 1.4 petrol 2001.
Check engine light has been on since I bought the car two weeks ago.

17598 - Linear O2 Sensor; Reference Voltage: Implausible

P1190 - 35-10 - - - Intermittent

According to Audis workshop repair guide I did a measurement of the resistance between connection 3 and 4 on the lambda probe that is supposed to be between 2,5 and 10 ohms. I measure infinity (no cennection) I also measure between connection 1 and 2. Also infinity. I buy a new lambda sensor. I delete the error codes and start the engine. Check engine light comes on after a while. The same error code appears. I perform the same measurement on the new lambda sensor and I get the same readings! Is the new sensor also defect or is it a printed error in Audis original workshop manual? Maybe there is nothing wrong with the lambda sensors at all?
I take a look at group 41 in vcds and the resistance reading is blank on sensor one.

Can you help me please?

 

[BJohan]

Update: There is an error in a picture in Audi original workshop manual Elsawin. So there was nothing wrong with the lambda sensor. It is either faulty wires or ECU failiure.

 

[skua]

Update: There is an error in a picture in Audi original workshop manual Elsawin. So there was nothing wrong with the lambda sensor. It is either faulty wires or ECU failiure.
View attachment 71111

Hi there

I have had the same problem for 17 years now. Car runs perfect but this time I couldnt pass MOT test and neither could delete the CEL with my OBD2 Delphi program, well I could but light came on inmediately…
I was about to order the sparkplugs cables and both oxigen sensors then I readed your post and not sure what worked for you…

Thanks in advance for your advice.

 

[zago]

I am looking for advice on my A2 1.4 petrol 2001.
Check engine light has been on since I bought the car two weeks ago.

17598 - Linear O2 Sensor; Reference Voltage: Implausible

P1190 - 35-10 - - - Intermittent

According to Audis workshop repair guide I did a measurement of the resistance between connection 3 and 4 on the lambda probe that is supposed to be between 2,5 and 10 ohms. I measure infinity (no cennection) I also measure between connection 1 and 2. Also infinity. I buy a new lambda sensor. I delete the error codes and start the engine. Check engine light comes on after a while. The same error code appears. I perform the same measurement on the new lambda sensor and I get the same readings! Is the new sensor also defect or is it a printed error in Audis original workshop manual? Maybe there is nothing wrong with the lambda sensors at all?
I take a look at group 41 in vcds and the resistance reading is blank on sensor one.

Can you help me please?

View attachment 70327

Did you solved your problem?