My 04 Focus ST170 failed the MOT today on emissions.Anyone know how to get them down? I have put a one shot petrol mix through the tank and changed the air filter but they are still running high.
Fast Idle=0.06.Cheers in advance.
J.

 

Get the car seriously Hot before the test, failing that you could try a new lambda sensor but sounds like new Cat time. Worth buying a sports cat as ford will want to charge you nearly £1000 for a new one. Dont buy the cheap ebay cats they have more cells than the standard one and will lose you power

 

Any chance of a link for the sports cats? I have just put it into a garage and I'll see what he can do.
Cheers
J.

 

Google Scorpion ST170 sports cat and it should come up, they are £380, failing that Pumaspeed are doing a Sports Cats again for £400 but the picture looks like the american cats from CFM which tend to fail emmision standards in this country. I know their last batch from the states had this problem.

 

is that 0.06 a CO reading at fast idle? if so, thats not a fail

should be less than 200ppm for HC, less then .3 for CO and .97 to 1.03 for lambda forr the bet test, then whatever the book has for the st170

usually the tester hasnt got the catalyst hot enough for the test is the most common fail

 

Cheers fellas,I'm picking it up today at 3.00pm and I'll let you know whats happened.
Much appreciated.
J.

 

Just a quick one,how long does the car have to be running before the cat gets to operating temp?
J

 

Mine also failed.

New lamda sensors, new air filter and new cat from here....

http://www.cats-direct-shop.co.uk/

Job done.

 

Dropped my st170 in for mot this morning. I drove it at high speed then i sat on the forcourt with engine running till fans kicked in and then gave the car to them. It passed its mot with flying colours after scraping through emmisions last mot. Well pleased.

 

Cheers JP and SP.I baby mine and it failed on rear pads (45 min job on me drive) and these frikkin emissions as you have read.
It never gets ragged and the bloke said " I take it you only do short journey?" , "shove some 'one shot' through it and a new filter" still didnt work
I'll pass today though(HOPES).
I had another one before this and it was a pearler,never failed.
J

 

Here's the liddle divil!


J.

 

loving the asteriod td

 

Looks tidy! Shame about the extra 2 doors lol

 

The astra was one of me old cars I used for work I give it away! It had four months tax and eight months MOT,55-60 to the gallon and passed the MOT first time evrytime

The "Other two doors" are a must when you have nippers My Magnum grey ST was a two door but I I sold it for a school run wagon (L200)
J

 

Thats what mine needed on it too.....passed.
J