Can anyone help, Just a Quick one, where cats fitted to the later sierras with the DOHC engine? and also what year would they have been introduced,

Thanks.

Cats were fitted to all sierra models from 1991, with 1.6,1.8 and 2.0 sierras getting them in 1990.

The last sierras were sold in 1994.

Cheers

Chris

[Edited on 16/2/09 by chrisg]

I would say injection models and not carb ones as my donor was 1991 1.8 CVH carb no cat!

Adrian

[Edited on 16-2-09 by AdrianH]

mine is a 93 1.8 cvh no cat

K reg 93 1.6 Pinto and no CAT.

Yes, injection models only cats don't generally work with carbs.

cats

Cheers

Chris

Excellent Thanks for that. Im a bit in the dark on some of the rules but if i buy a sierra (Say a 1991 2.0 DOHC) with CAT will i have to fit a CAT to my Haynes if i want an age related plate.

Thanks.

In theory yes, but if there were cars with cats and cars without cats at the same time then it's unlikely that an SVA/IVA inspector will know which is which.

I'd leave it out and take the risk

Cheers

Chris

I like that idea. Thanks.