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 Posted: Fri Oct 12, 2012 10:46 am |
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Joined: Oct 05, 2012
Posts: 23
Trade Rating: 0
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Hi,
My Peugeot 206 has been running a little bit off lately, and I have noticed that the car is suffering from worsening fuel efficiency. Also, the poor little Pug has lost some power in acceleration. 
The engine light came on today, so I plugged in my little OBD reader and it pulled off the code P0141. Now this rung a bell from my previous car where I had to change the Lambda sensor, but this was a little while ago. 
I have three questions:
1) Can a faulty H02S (bank 1 sensor 2) cause:
a) bad fuel economy
b) loss of engine power
2) Can someone provide a nice photo or illustration to show where the Lambda is? I am not sure which one is which!
3) I don't want to fork out £100+ for a sensor, so, how can I replace this at minimal cost. Obviously the sensor will need to be replaced, but where do you recommend I can get one at a reasonable price.
The reason I am being a bit of a cheapskate and not wanting to pay a lot to fix this problem is because I am selling the car. 
Many thanks for your help!
SR
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Posted: Fri Oct 12, 2012 10:56 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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1) yes
2) the one after the cat.
3) cheap sensor will fail in no time. proper bosch sensor cost about 60-80 quid
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Posted: Fri Oct 12, 2012 11:05 am |
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Joined: Oct 05, 2012
Posts: 23
Trade Rating: 0
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I am a bit of a beginner mechanic, could you link a picture from google? I want to be sure, yet, I still don't want to pay for a garage to do it!
Thanks,
SR
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Posted: Fri Oct 12, 2012 11:06 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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i don't even know what car have you got
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Posted: Fri Oct 12, 2012 11:10 am |
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Joined: Oct 05, 2012
Posts: 23
Trade Rating: 0
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As the first line of my post states, its a Peugeot 206 (1.4 2001 plate). I think I know where it is now, it is the one right at the back. It that what is called the upstream sensor?
Thanks,
SR
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Posted: Fri Oct 12, 2012 11:12 am |
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Joined: Oct 05, 2012
Posts: 23
Trade Rating: 0
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Actually, it looks like it is the downstream lol.
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Posted: Fri Oct 12, 2012 11:19 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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yes is that one.
and you didn't mention you have a 1.4 in your first post
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