cat.

ted clutch · Post by **ted clutch** » Tue May 05, 2009 11:21 am

does it make much difference removing the cat.i have 1991 model so should be legal.does the sensor work ok in straight pipe.anyone done this buddies.

yknot · Post by **yknot** » Wed May 06, 2009 6:36 am

If your 480 are euro2 norm, removing the cat will produce mot failure.

ted clutch · Post by **ted clutch** » Wed May 06, 2009 11:54 am

what is euro2norm . i live in uk.

rgreenhalf · Post by **rgreenhalf** » Wed May 06, 2009 12:21 pm

Turbo I assume? Should help spool up speed. Good also if you want to remove the recirc valve.

ted clutch · Post by **ted clutch** » Wed May 06, 2009 2:29 pm

es no turbo

esta · Post by **esta** » Wed May 06, 2009 4:03 pm

In theory something like any car pre '93 can be cat free, as emmissions arent as stringent. Obviously UK!

JohnTurbo · Post by **JohnTurbo** » Thu May 07, 2009 10:38 pm

YOu don't need a cat in the uk, just just need to pass a test that usually requires a cat to pass.

My LPG primera passes without one.

Pre 92 (sept) you have a massivly better chance of passing without one.

ted clutch · Post by **ted clutch** » Thu May 07, 2009 11:04 pm

thats why im trying to find out. i wouldnt bother post 92.i think its 3.5 % co for 1991 test. not sure how close it will be to this without cat.lambda sensor should still stop it from gassing passers-by though.

dragon · Post by **dragon** » Fri May 08, 2009 8:46 am

As JT said, there is no legal requirement for a CAT in the UK at all, there is just the lagal requirement to pass emissions tests, and as also said, pre '91, or alternative fueled cars have much less stringent limits.

Your Lambda will work fine in the straight pipe replacement, just make sure it's sealed correctly if you are going to bodge it. Best bet is to get someone to tap/die the correct thread into the pipe, or weld a suitably sized nut onto the pipe to screw the sensor into.