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liamcafs · Dec 6th, 2019, 11:44

I have a check engine showing on my 02 1600 petrol S40.

P0141 is showing as a heater circuit fault on o2 sensor 1 (post cat?????)
P0036 is showing as a heater circuit fault on o2 sensor 2 (post cat)

What are the chances I'm I looking at 2 failed sensors or possibly a more general fault??

Anyone have any thoughs??
Thanks in advance.

EDIT
On second look I think they both refer to the post-cat sensor?!

Dec 6th, 2019, 11:44	#1
liamcafs Member Last Online: Oct 13th, 2021 16:10 Join Date: Oct 2009 Location: Milford Haven	P0036 and P0141 Error Codes I have a check engine showing on my 02 1600 petrol S40. P0141 is showing as a heater circuit fault on o2 sensor 1 (post cat?????) P0036 is showing as a heater circuit fault on o2 sensor 2 (post cat) What are the chances I'm I looking at 2 failed sensors or possibly a more general fault?? Anyone have any thoughs?? Thanks in advance. EDIT On second look I think they both refer to the post-cat sensor?! __________________ '95 960 RWD 105k miles (Donor Vehicle) '87 240 RWD 92k miles '02 S40 FWD 100k miles '99 V70 AWD 155k miles SOLD Link to my 240 Engine Swap Build Thread Last edited by liamcafs; Dec 6th, 2019 at 11:55.