2nd Lambda sensor - P0130?

[v15ben]

Hi guys,

My exhaust gases warning light came on in the 182 a week ago and having spoken to the local mechanic, he thinks it might be the Lambda Sensor after the cat. Had a new exhaust fitted 6 weeks ago so not sure if it's linked to that.

The light has been permanently on for the past week though now after he's read the fault codes and started it up again, the light isn't on any more. Done a few miles and not a sausage.

He wanted £175 to change the lambda sensor so hardly surprisingly I don't fancy paying that much! Question is does it actually need doing if the light isn't coming back on? I'll probably get it done anyway of course to be on the safe side but just wondered what peoples' experiences have been.

 

[john.med]

Now it's off, ignore it!

 

[v15ben]

That is my thought. Just wondering though as I've done a good 300 miles + with the light on (mainly motorway) and haven't noticed any change to MPG or performance at any point in the rev range.

However having had the light on for a week it would indicate something is up lol!

 

[john.med]

If the code is just the lambda, then now it's gone just ignore it. Seriously. I've had similar issues with my 172 since buying it 4 years ago. Passes every emissions test, returns good mpg, goes like stink, what more do you want...

 

[chris182cup]

Ben Whats your mpg? My ligh is on constant now but think its just due to decat. My pre cat sensor is fucked I just swapped the post cat sensor for pre cat and it sorted things out cos the rear sensor doesnt really do anything so They say.
New sensor is only 60pound and takes mins to fit

 

[v15ben]

Combination around town and on the motorway of 33-35mpg usually. Same as it's been since I bought it on a standard exhaust in April

 

[jackfm]

lambda's cost like £55 and can fit them in like 5 mins on a driveway? its like one bolt.

 

[chris182cup]

Im down to 25mpg but only doing city driving was at 36 taken a few weeks to drop so low again

 

[v15ben]

lambda's cost like £55 and can fit them in like 5 mins on a driveway? its like one bolt.

Yep that is what I thought when the mechanic quoted £170. I picked the car up pretty sharpish

 

[v15ben]

Im down to 25mpg but only doing city driving was at 36 taken a few weeks to drop so low again

Yep if I do purely city driving then like most cars the MPG is rubbish. Managed 23mpg driving round London for a couple of days lol!

 

[chris182cup]

im at the petrol station every 3 days or so, must put around £40 a week in and i dont seem to go anywhere lol

 

[v15ben]

Lol wish I could say the same. My car barely turns a wheel Monday to Friday!

 

[v15ben]

Problem was down to the lambda sensor working intermittently.
Now replaced and hopefully all will be well!

 

[paul]

ive had same problems ive heard that the rear sensor doesn't do much?! mines been switched off! but im waiting for it to come back on!! who replaced it for you ben?! did it come back on in the end then??! i was told that mine might be the front one!!

 

[v15ben]

Mine was the front one Paul.
Light was on for a few days then went off.
Replaced by local mechanic, David Drew in West Bridgford who normally look after the car.

 

[paul]

what did he charge in the end if mine comes back on ill get mine sorted

OFF AT THE MO!

 

[v15ben]

£55 for sensor and fitting it tomorrow but that won't be much.
Plus £5 for the fuel to test drive it as I left it totally empty - oops!

 

[paul]

thanks keep this thread/me posted please ben tthanks

 

[v15ben]

All sorted now and running fine. £55 for the lambda sensor plus £50 for the diagnostics, labour and fuel which I thought was a bit steep considering they only put a tenner in, but all seems fine now!

 

[john.med]

Yeah, that's why I've just ignored mine!

 

[paul]

mines still off 10 stars to david!