P0141 and P0161
Thread Starter
Newbie
Joined: Aug 2014
Posts: 4
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1999 ML320, 2004 ML500, 2003 SVT Cobra, 1986 T Type, 1987 Grand National, 1969 Camaro SS396/X66
P0141 and P0161
99 ML320, 200k mi.
Have 2 codes show up the other day. I cleared them and as soon as it goes into closed loop it throws the codes. P0141 and P0161.
Anybody have any ideas. I find it hard to believe that both rear O2 sensors would go bad at the same time. I looked under the truck, wires look good (looks like original sensors).
Also checked the fuse at #19 was good, and ground near brake booster is tight.
Thanks for any help
Have 2 codes show up the other day. I cleared them and as soon as it goes into closed loop it throws the codes. P0141 and P0161.
Anybody have any ideas. I find it hard to believe that both rear O2 sensors would go bad at the same time. I looked under the truck, wires look good (looks like original sensors).
Also checked the fuse at #19 was good, and ground near brake booster is tight.
Thanks for any help
Super Member
Joined: May 2013
Posts: 504
Likes: 7
From: Harare, Zimbabwe
2003 ML55,2007 ML63
Your car is 15 years old. It is very much possible that your post CAT sensors are cooked. Maybe you had 1 bad sensor & didn't know about it & the second one has gone bad as well. Is there a problem with the car or you just did a routine scan?
Thread Starter
Newbie
Joined: Aug 2014
Posts: 4
Likes: 0
1999 ML320, 2004 ML500, 2003 SVT Cobra, 1986 T Type, 1987 Grand National, 1969 Camaro SS396/X66
I replaced both sensors, and so far so good. I used the search and many people did that, and still got the same codes.
Drove 100 miles today and no cel.
Thanks for the help!!
Drove 100 miles today and no cel.
Thanks for the help!!
Last edited by TRMNATD; Sep 18, 2014 at 10:38 PM.
