O2/lambda sensor

agriffo · Sep 7th, 2011, 21:33

Hi Folks,
The engine management light on my '99 C70 auto with the B5254T engine has just come on.
Local indy has read the codes and there are a fair few of them. He recons they are all spurious, being caused by the main one
P0172 - system too rich
He recons changing both lambda sensors will sort this. Could anyone please tell me where these sensors can be found? Is it a difficult job to change them? I see that GSF have them for £71.40 each.
Idle has been a little irregular the last couple of days, hunting at idle and car almost stalling as I come to a stop.

I am sorry to ask questions which have probably been asked loads of times before but I never seem to have much luck with the search facility. I O2 sensor and get hundreds of random results.
ta
Ade

deathrider311271 · Sep 7th, 2011, 21:36

what were the other codes? is this garage a volvo specialist?

agriffo · Sep 7th, 2011, 21:40

HI,
thanks for reply,
garage is a saab specialist primarily but he also does a heathly line in volvos as well.
I don't know what the other codes were - the wife took the phone call . . .
ta
Ade

deathrider311271 · Sep 7th, 2011, 21:43

we really need to know all the codes as there are a few things it could be, the big one being the ETM.

agriffo · Sep 7th, 2011, 21:49

ta,
will ring mechanic myself tomorrow and see what he says!

Sep 7th, 2011, 21:33	#1
agriffo Junior Member Last Online: Mar 13th, 2018 23:08 Join Date: Jun 2007 Location: birkenhead	O2/lambda sensor Hi Folks, The engine management light on my '99 C70 auto with the B5254T engine has just come on. Local indy has read the codes and there are a fair few of them. He recons they are all spurious, being caused by the main one P0172 - system too rich He recons changing both lambda sensors will sort this. Could anyone please tell me where these sensors can be found? Is it a difficult job to change them? I see that GSF have them for £71.40 each. Idle has been a little irregular the last couple of days, hunting at idle and car almost stalling as I come to a stop. I am sorry to ask questions which have probably been asked loads of times before but I never seem to have much luck with the search facility. I O2 sensor and get hundreds of random results. ta Ade

Sep 7th, 2011, 21:36	#2
deathrider311271 I've Been Banned Last Online: Jun 21st, 2022 19:26 Join Date: Mar 2010 Location: Grimsby	what were the other codes? is this garage a volvo specialist?

Sep 7th, 2011, 21:40	#3
agriffo Junior Member Last Online: Mar 13th, 2018 23:08 Join Date: Jun 2007 Location: birkenhead	HI, thanks for reply, garage is a saab specialist primarily but he also does a heathly line in volvos as well. I don't know what the other codes were - the wife took the phone call . . . ta Ade

Sep 7th, 2011, 21:43	#4
deathrider311271 I've Been Banned Last Online: Jun 21st, 2022 19:26 Join Date: Mar 2010 Location: Grimsby	we really need to know all the codes as there are a few things it could be, the big one being the ETM.

Sep 7th, 2011, 21:49	#5
agriffo Junior Member Last Online: Mar 13th, 2018 23:08 Join Date: Jun 2007 Location: birkenhead	ta, will ring mechanic myself tomorrow and see what he says!

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