just me

iTrader: (3)

I had an mot today, at first the car failed due to emissions, they're a friendly bunch at the garage, and advised I go for a 10 mile spin on the motorway, then come back.

This time the car passed the emissions test, but I was wondering if its a good result or should I look at investigating further?

The results were:

Fast Idle
co 0.04%
hc 22ppm
lambda 1.02

natural idle
co 0.00%

Thanks

Carnut

I don't know the answer but no one will unless you add what exhaust system you've got.

just me

iTrader: (3)

prodrive sports cat, scorpian center 2.5", Tsl back box, didnt think the exhaust itself would make much difference, as its not decatted yet.

Donnie Brasco 46

iTrader: (2)

The emission result sheet will show what the minimum/maximum permissable limits are for your car, this should answer your question.

It probably failed the first time as the engine/catalyst was not hot enough when they did the check.

gazzawrx

iTrader: (11)

Co is a 2.0 limit
hc is a 200 limit
lambda is a 1.03 limit so its a good reading really albeit i reckon you may have a slight exhaust leak as the lambdas getting towards the high side.