One of me missus' colleagues has a Fiat Seicento and its just failed the MOT on emissions. They said they can't trace it?!! Any ideas what could cause the high emissions except for the Cat and Lambda Sensor?

 

Blocked air filter

 

Failed on CO? HC? Lambda?

Take it for a rag to get the CAT nice and hot?

 

Just waiting for a copy of the emissions sheet, will put it on here in 5!

 

Here is the fail sheet....

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Here is the fail sheet....

 

Any chance of a clearer one mate so we can read the figures as I cant make them out. Will give you my opinion gladly once I have them.

 

As above, can't see the figures

 

Coolant temp sensor?

 

ill see what i can do, hopefuly the missus brought the printout home so ill scan it!

 

Here you go Stu. Thanks

 

Going by that reading's i would say the catalyst aint hot enough and is not working properly yet.

The tester has bypassed the engine temp so cant see how warm the engine actaully is.

The readings are not terribly high and would probably be a lot higher if the catalyst was goosed !

Make sure its had a good hard run before getting tested again as most times a high CO reading is due to the engine not being hot enough.

If you have it roasting hot and it fails again your probably looking at a new catalyst.

 

I concur. Is this a car used primarily for short journeys by any chance?

 

I think she travels about 10 miles each way to work? I wouldnt want to travel any further in something that small!!!! Is it worth her replacing the cat? She said this morning that if its going to cost too much she may as well sack it in and buy a new car?!

 

go and warm it up and pop it off the limiter a few times then take it back should get a free retest if you get back within 7 days