#1: lambda senser help Author: omega, Location: nottinghamPosted: Mon Jun 17, 2013 2:36 pm ---- my 206 gti engine light has come on,ive had the fault read and its the lambda senser so just thought id try changing it myself,so soaked it in freeing oil and as I did so I noticed that I have 2 of them one near the cat and one on the downpipe.
is this normal? will I have to replace both ? or is one something else?
cheers
#2: Re: lambda senser help Author: MrBSI, Location: What's it to you? ? ?Posted: Mon Jun 17, 2013 2:40 pm ---- A simple exhaust leak can trigger a lambda sensor fault code
You have checked the exhaust system is ok first?
#3: Re: lambda senser help Author: omega, Location: nottinghamPosted: Mon Jun 17, 2013 2:48 pm ----
MrBSI wrote:
A simple exhaust leak can trigger a lambda sensor fault code
You have checked the exhaust system is ok first?
hi yes
exhaust is fine;no cheap fix for me!
#4: Re: lambda senser help Author: Timon2210, Location: PalestinePosted: Mon Jun 17, 2013 4:00 pm ---- you need to know which one is the faulty one when you got the fault code read,no need to change both,but usually the upstream one is the highly to get faulty,but double check to be sure.
#5: Re: lambda senser help Author: Edward, Location: In the garagePosted: Mon Jun 17, 2013 4:03 pm ---- My 206 failed its first MOT on a failed downstream sensor...so it could be either at fault. Did the fault code not specify which sensor it was?
#6: Re: lambda senser help Author: kandlbarrett, Location: SwindonPosted: Tue Jun 18, 2013 3:07 pm ---- Fault code should have identified which one.
The comment about exhaust leak is a good one. You need to have a very good look at the joints and welds as a hole not much bigger than a pin can give you lambda readings that will cause MOT failure or a fault code light on and a hole that small can't be heard as an exhaust blow.
#7: Re: lambda senser help Author: omega, Location: nottinghamPosted: Tue Jun 18, 2013 3:17 pm ---- Think il have to take it back then
do all cars have 2 of these things as they are not cheap
#8: Re: lambda senser help Author: gazza82, Location: South BucksPosted: Tue Jun 18, 2013 3:37 pm ----
omega wrote:
Think il have to take it back then
do all cars have 2 of these things as they are not cheap
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