O2 sensor at G3/2 short before KAT? Is that Bank 1,2,3 or 4?

[domwild]

Am confused as I have not had a look below. Are there four O2 sensors before the catalytic converter and four more after? Just want to make sure I pull the right one to have a look.

Thanks.

 

[LostKiwi]

You have a 4 cylinder engine so only have one bank.
There are 2 sensors - one before the cat and one after.

 

[domwild]

You have a 4 cylinder engine so only have one bank.
There are 2 sensors - one before the cat and one after.

Thanks for that. Or merci beaucoup. Got confused because one forum entry mentioned cylinder numbers in that O2 discussion.

 

[Steve@Avantgarde]

If you have an early 204 with the 646 engine it will only have 1!

 

[domwild]

If you have an early 204 with the 646 engine it will only have 1!

Thanks for that. What's all this bull then about "Position G3/2" which has come out of my iCarsoft MB2 diagnostic if there is only one before and one after?

Looking at the fuel consumption, this "stuffed" O2 sensor does not have caused it to go up, I think I just read 7.1 litres Diesel /100km.

 

[Steve@Avantgarde]

Any non generic MB scanner will give spurious code definitions, its all in translation code written by icarsoft. STAR may something slightly more specific and in some cases completely different!

 

[domwild]

Any non generic MB scanner will give spurious code definitions, its all in translation code written by icarsoft. STAR may something slightly more specific and in some cases completely different!

Thanks for that again. Am having trouble seeing it while lying underneath with my nose touching the exhaust. May I ask you to give me a clue what to look for and what to remove to see it?

 

[leiwei21]

Reviving this dormant thread with the exact question in the heading "O2 sensor at G3/2 short before KAT? Is that Bank 1,2,3 or 4?". This is the code I am getting from my Foxwell OBD2 scanner via the 38 pin port under the hood. I don't have access to STAR unless I go to the dealership which I'm obviously trying to avoid for now if I can get this information with my current scanner: "P0135 - not defined - O2 sensor heater of component G3/2 (O2 sensor upstream of KAT)"

I have a V8 M113 engine, and I can see 4 O2 sensors, two pre CAT - one on the left (driver's side; I'm in USA) and one on the right (passenger's side). There are 2 additional O2 sensors immediate after the CAT also. If anyone knows I'd appreciate it greatly, thank you.