MOT with Center CAT only - Who's passed
17 October 2005, 04:37 PM
#1
MOT with Center CAT only - Who's passed
MOT'd my car last year with the Center CAT only refitted.
It went through but only just with 0.3% CO (Limit =<0.3%) for natural idle.
looking at the previous year when I had the Center & DP fitted for some reason the limit was =<0.5% and it measured 0.49%. So again, only just through with both cats.........
It's now that time of year and I need to decide whether to fit the Center CAT of both CATS.
If the opinion is that just the Center will be fine, I may aswell risk just fitting that. Rather then spend another hour or so under the car fitting the DP.
It went through but only just with 0.3% CO (Limit =<0.3%) for natural idle.
looking at the previous year when I had the Center & DP fitted for some reason the limit was =<0.5% and it measured 0.49%. So again, only just through with both cats.........
It's now that time of year and I need to decide whether to fit the Center CAT of both CATS.
If the opinion is that just the Center will be fine, I may aswell risk just fitting that. Rather then spend another hour or so under the car fitting the DP.
17 October 2005, 09:02 PM
#2
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mine passed just a short time ago with the center cat it needs to be very hot for it to work if you know the tester well they will keep going untill the car passies the test took bout 10 mins to get mine up to temp @4000 rpm just got through then droped off like a stone carnt rember the co count
chris
chris
18 October 2005, 10:45 PM
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Which model are you guys running - classic turbo? I think they have 2 Cats. The reason I ask is that I run a STi 5 and thinking of fitting a centre Cat and droping the DP Cat (some here have said that this will increase the gas flow/improve response etc) - incase this was experience?
Cheers
Cheers
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19 October 2005, 02:02 PM
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Originally Posted by Jolly Green Monster
Snap,
change the downpipe and then get a uk centre with cat for mot only
Simon
change the downpipe and then get a uk centre with cat for mot only
Simon
Cheers
Parvis
19 October 2005, 02:11 PM
#11
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Originally Posted by SNAP
Thanks Simon - but that would need remap/Ecuteking? Have been considering that though - bit more Fun!
Cheers
Parvis
Cheers
Parvis
You'll get more out of it with a remap but should be safe without if you can put up with pouring octane booster in.
Simon
19 October 2005, 08:49 PM
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Both my Imprezas have passed MOTs this year with just the centre cat:
MY96 UK turbo with dnb custom mapped ScoobyECU
MY99 STi RA Limited with Bob Rawle ECUTek map
MY96 UK turbo with dnb custom mapped ScoobyECU
MY99 STi RA Limited with Bob Rawle ECUTek map
19 October 2005, 10:23 PM
#15
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Originally Posted by dnb
Both my Imprezas have passed MOTs this year with just the centre cat:
MY96 UK turbo with dnb custom mapped ScoobyECU
MY99 STi RA Limited with Bob Rawle ECUTek map
MY96 UK turbo with dnb custom mapped ScoobyECU
MY99 STi RA Limited with Bob Rawle ECUTek map
Thanks
20 October 2005, 06:46 PM
#16
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Have tried to get my car through mot with the Cat in the Boot, but they would not pass it?!!
Last 2 years passed on just centre cat section which I leave on now, I do not really notice the loss of any power,a bit quieter on Motorways as well.
Aggs
Last 2 years passed on just centre cat section which I leave on now, I do not really notice the loss of any power,a bit quieter on Motorways as well.
Aggs
20 October 2005, 07:33 PM
#17
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Originally Posted by aggs
Have tried to get my car through mot with the Cat in the Boot, but they would not pass it?!!
Last 2 years passed on just centre cat section which I leave on now, I do not really notice the loss of any power,a bit quieter on Motorways as well.
Aggs
Last 2 years passed on just centre cat section which I leave on now, I do not really notice the loss of any power,a bit quieter on Motorways as well.
Aggs
In the Boot?!! Now, what innovative method is that?! Presume your's is a classic turbo?
21 October 2005, 06:45 PM
#19
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Yes I told them that they could put the Cat on,so I could pass the test,which would cost me x£ for the labour,and then take it off again and put it in the boot again.
I Suggested
That if I gave them x£ in advance they could leave the cat in the boot,they could pretend they put it on and let me pass the test and we will all be happy!
They did not comply sadly.
Car is MY2000.
I Suggested
That if I gave them x£ in advance they could leave the cat in the boot,they could pretend they put it on and let me pass the test and we will all be happy!
They did not comply sadly.
Car is MY2000.
21 October 2005, 07:55 PM
#20
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Mine passed a few weeks back without any cats
Probably down to it being warm...oh yeah & Simons mapping
Cheers JGM
MAFFA
Probably down to it being warm...oh yeah & Simons mapping
Cheers JGM MAFFA
21 October 2005, 09:07 PM
#21
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My MY94 recently passed it's test with no cats in place. Think it might have something to do with the fact that my nieghbour works at a test center and he took it in for it's test. Slightly off topic, but was well chuffed as it's the first car I've owned that hasn't needed a thing done to pass it's test at the same test center. 
22 October 2005, 08:02 PM
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mine passed with center only.
emmisions were stupidly low
something like (although cant find the paperwork)
CO = 0.11%
HC = 15PPM
natural idle CO = 0.13%
that on my own mapped PFC, but running closed loop (lambda = 1.00 on test)
you're more than welcome to borrow the centre section if you dont think yours is upto it ?
cheers
Steve
emmisions were stupidly low
something like (although cant find the paperwork)
CO = 0.11%
HC = 15PPM
natural idle CO = 0.13%
that on my own mapped PFC, but running closed loop (lambda = 1.00 on test)
you're more than welcome to borrow the centre section if you dont think yours is upto it ?
cheers
Steve
Last edited by ScoobyDuck; 22 October 2005 at 08:06 PM.
24 October 2005, 05:52 PM
#24
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cool bit of hassle, but it passed
bit less hassle than mine today, which wouldn't have passed the emmisions test becasue the engine didnt work !
1 new fuel pump please
its good to have friends who are willing to get you out of a fix
thanks go out to NathanL & Buzz for sorting me a pump to get me home and a new one (in that order) & Mike of Rivvett autos for the 'yeah, it'll be the pump' comments
Steve
bit of hassle, but it passed bit less hassle than mine today, which wouldn't have passed the emmisions test becasue the engine didnt work !
1 new fuel pump please
its good to have friends who are willing to get you out of a fix
thanks go out to NathanL & Buzz for sorting me a pump to get me home and a new one (in that order) & Mike of Rivvett autos for the 'yeah, it'll be the pump' comments
Steve
24 October 2005, 10:28 PM
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