Pulled 2 codes this morning from my cheapo ebay OBDII tool:

408C - Bank 1, Probe 2 no activity

4471 - Bank 1, Probe 2 Internal resistance too great

After doing some searching here, it appears the second code is related to my post-cat O2 sensor. Just wondering if code 1 is telling me its dead or? Don't want to replace the o2 if its not the cause.

No cel yet.

 

very strange codes, not even listed???

 

Yeah sorry thats from the ebay book... heres the actual #s:

P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

17522 - Oxygen (Lambda) Sensor: Bank 1 Sensor 2: Internal Resistance too High

I think these are the equivilent.

 

that's better wiring to heat not working on the O2 sensor, check wiring/connections but it sounds like the O2 sensor to me

 

check the wirings? it might be that your oxygen sensor needs some replacement.

 

Ok so I looked on that site and found the O2 sensors:

http://www.carpartswholesale.com/sto...l=A4%20QUATTRO

I was looking elsewhere and they wanted $150, this place only wants $30. Whats the difference?

 

$120 I couldn't resist that lol, the difference is the amount of wires your has the £150 one is a joke unless its made of gold

 

They are listed for $150 on ECS tuning:

http://www.ecstuning.com/stage/edpd/...ro&engine=1.8T

 

its the "universal" that get me that's used by many companies to rip you off ( how can it be OEM if its universal ) go for the cheaper one it has to carry a guarantee like OEM just ensure you get the right one for your car with the same amount of wires

 

Good call... thanks man.