the reg year of the car makes a difference as to what limits they are tested against...its the later models that have lower limits that really need the cat in place ...

 

Does the 180 not have a pre-cat as well as the main cat? I'm sure they pass with either cat in place, but not both removed

 

As been said if fitted with OE manifolds then the pre-cats are enough on their own for it to pass the emissions when de-catted. Mine has been through 3 MOTS with it as it stands. The post-cat is more like belt and braces.

 

The new MOT rules should have failed it though for not having its original cat(s) fitted though.

 

section 7.3 deals with CAT equipped vehicle emission test...none of the tests in that section specify that the vehicle must have a CAT fitted , just that the vehicle must pass the test ....

if you know of the reason for rejection (I have posted a link of the MOT testers manual in the how to section) please let us know so we can all be aware ,thanks.

ian.

 

i thought the new regs came in at the end of the month?

 

I'm not aware of any new regs concerning the requirement to have a CAT fitted.....as long as the exhaust is complete and safe / operational and your vehicle passes the emissions test for the model/year etc then thats whats tested...not the presence of one....

but i'm always learning so if anyone does know then do tell


ian.

 

http://forums.mg-rover.org/showthread.php?t=454510

http://mottesters.co.uk/files/special%20notices/MOT%20Inspection%20Manual.pdf

7.1.3 on page 157

Reason for rejection: A catalytic converter missing where one was fitted as standard.

Pretty black and white and the rules changed in Jan.

 

http://forums.mg-rover.org/showthread.php?t=454510

http://mottesters.co.uk/files/special notices/MOT Inspection Manual.pdf

7.1.3 on page 157

Reason for rejection: A catalytic converter missing where one was fitted as standard.

Pretty black and white and the rules changed in Jan.

you missed of the test bit though...

On vehicles that qualify for a full cat emissions
test, check the presence of the catalytic
converter.

so it depends on year/model as I originally stated as to the test performed...

so..does the OP's vehicle qualify for a FULL cat emissions test ...

just making the point that its not a carte blanche yes/no answer...

 

Which ones qualify for that though? Isn't it everything post 1992 that have to have the "cat" test.

 

nah...you have to follow the flowchart and see if your vehicle is within the date ranges and have emissions recorded on the database for a full test to be done else they end up with hybrid or basic test and then 7.1 is only applied if it is a full test...

 

Ahh yes I see.

Some of mine are pre- BET test or diesel )

 

same here , one is a 25 from 2000 (just before the emissions were recorded) and the other is a 96 diesel Landrover....

Ian,

 

haha new fangled stuff. Mine is 1989, 1991, a Kit car (visable smoke test), and 1998 diesels

 

ha ...you've got no worries then ...

 

My first MOT without post manifold cat Saturday! I'll let u know the results wish me luck! Zs180 04 reg

 

let us know , that will be a good test of how well the charts work (if at all )

make sure you ask for a copy of the emissions test printout...

good luck.

Ian.

 

I take it that a diesel will still pass without a cat??

 

Read here:

http://forums.mg-rover.org/showthread.php?t=454510

 

Top man - saves alot of grief!!

 

The tester knew fully well it was a De-Cat, he fitted it for me the year before. Also, the figures from the gas analysis 0.02% CO, 2 ppm HC and 1.00 Lambada. With these results i really don't see why they would have an issue.

 

Passed with flying colours! Did not even notice the decat!

 

How did an MOT tester not notice something as big and ugly as a cat?
I wanna come to your testing station

 

It's called putting a ten pound note in his face when he went to look at the cat!