MOT Emissions fail - again!

[Prudie]

Last year I posted about failing my MOT on emissions, got some good advice, also mechanics from work gave their opinion and result was I bought a new Cat and got it through. Now it has just failed again on emissions at the same garage and they are suggesting first I get a new lambda sensor with no guarantee that will help. My question is why is this fault so difficult to solve?

[TWR]

They dont give a sht as long as the can rope in the moneyDT.

[Prudie]

What 'lube' is DT talking about? Oil? KY?

[DTCwordfan]

oil - lubricant - how old is your car. prudie?

[tonyav]

Yep Prudie, engine oil.

[DTCwordfan]

Not actually true TWR not on the lubs front...

[DTCwordfan]

My guesstimate you should use a 5W30....Shell/Castrol - Shell is richer in their additives and length between changes...but you pay a little more.

[Prudie]

It's an M reg which is old but an import that only had 20k on it when I bought it about 5 years ago. It's never given me any other problems. I love it and would only change it if I could find something that I like as much that I could afford. It had an oil change during the service.
If I try Redx it won't help me through the re-test in 10 days though will it?

[eastern]

Run off the Tesco rubbish, fill it up with shell and then give it a good run (Italian Tune up!!) make sure it gets well revved. That should clean out the CAT, if the Lambda sensor is duff you can get a new one easily enough from any Car spares centre. When you pull the dipstick out if the oil is very black and thick it needs changing, this won't effect your emissions though but it will keep your engine going.

[DTCwordfan]

as I thought a 5W30 for your lubricant......eastern is correct re tune up, worth a shot. My garage does a pre-check before the test......

[TWR]

Just re-read my reply Re/the exhaust Prude, I was NOT taking the IZZ.

[DosAmigos]

I'd agree with the others and say that you need some proper lube. Forget the redx, that's a porno tv station.

[TWR]

Read up a bit on Red x Dos, it might interest you.