Hi

Just pulled out the driveway and noticed EML on

Checked the obd and got

P0030...current fault

And 

P0135...pending fault

Am i rite in thinking change the O2 sensor

Or is there a few sensors it could be pointing toward

Will have a look round the forums when get back.

Just thought id put this up for now

Thanks 

It is highly likely to be the pre cat lambda sensor, but I would check the wiring plug under the floor first for any damage or crud to be sure.

 

http://wiki.ross-tech.com/wiki/index.php/16414/P0030/000048

1 hour ago, kentphil1 said:

It is highly likely to be the pre cat lambda sensor, but I would check the wiring plug under the floor first for any damage or crud to be sure.

 

http://wiki.ross-tech.com/wiki/index.php/16414/P0030/000048

 

Will have a look but certainly seems like in most cases the pre cat sensor needs replacing. Has little over 180k miles on it so lasted well

Thanks for the reply

If it had of said Bank 1 sensor 2 would that have pointed to the after cat sensor? Rather then bank 1 sensor 1 i mean

Edited 19 April, 20179 yr by huwants2no

Anyone bought this one?

http://www.ebay.ie/itm/New-AUDI-A3-A4-A6-A8-TT-1-6-1-8-T-2-0-2-4-3-0-Lambda-Oxygen-O2-Sensor-0258006422-/182433960246?hash=item2a79e95136:g:YHgAAOSwUKxYhjwP

says Kxauto brand. or should i be spending the extra money for a Bosh one?? whats the oem manufacturer

On 19/04/2017 at 21:50, huwants2no said:

 

Will have a look but certainly seems like in most cases the pre cat sensor needs replacing. Has little over 180k miles on it so lasted well

Thanks for the reply

If it had of said Bank 1 sensor 2 would that have pointed to the after cat sensor? Rather then bank 1 sensor 1 i mean

Sorry, must of missed the post for some reason, and the answer to your question is yes, Bank 1 Sensor 2 is after the cat, sensor 1 is before the cat. Can't help on the sensor in your link, when my one left the planet, I fitted a bosch, which I think is OEM from memory.

14 hours ago, kentphil1 said:

Sorry, must of missed the post for some reason, and the answer to your question is yes, Bank 1 Sensor 2 is after the cat, sensor 1 is before the cat. Can't help on the sensor in your link, when my one left the planet, I fitted a bosch, which I think is OEM from memory.

No worries. Thanks. Think ill try get a more reputable one. The difference in prices is fairly wide tho

Should the fault code and eml disappear if problem sorted or do you always need to clear the codes?