cataclean
cataclean
Im running with no air pump or cat,emissions are 6. should be 3.5 or less,any one tryed cataclean to see if it works ,im gonna fit a cat for the mot.just wondering if cataclean does work save putting cat back on
cataclean
Well car went for m.o.t test again,As after four weeks i finally got my zeal suspension bushes delivered,Any way,emissions were 6.265% wich is a fail, So back on the tester ,Emissions were in the 6 again,so in goes a bottle of cataclean n well emissions drop to 2.2 and rise slowly to 3.401 so it passed, So if your engine is running right as mine is this proves cataclean does bring your emissions down for the uk mot test, I have no air pump or cat so this is great,
emissions
Co levels, in the uk they have to be less than 3.500%, My car was 6.265% running with no cat or air pump,to bring down co levels without a cat or air pump fitted would be impossible on a rx, But what ever is in cataclean works, It will only work for the time its in the fuel,But it passed the test,so i dont have to fit a cat once a year for the mot emissions test.Outher option is to run bio ethanal for the mot test or in the states smog test,that way your emissions will be very low
Joined: Jul 2003
Posts: 4,678
Likes: 96
From: Bay Area, CA
3.5%? The limits in the US are significantly lower. Here is a recent California test showing maximum limits of 0.5%.
I would guess that no amount of special sauce will get an FD past emissions without a cat in the US.
Test________CO2%__O2%______HC(PPM)________CO%_____ ____NO(PPM)______
______RPM_MEAS__MEAS__MAX_AVE_MEAS__MAX__AVE__MEAS _MAX__AVE__MEAS
15mph_1768_14.30__0.80_|_88__21___22__|_0.52__0.06__0.01_|_704__150__167
25mph_2922_14.40__0.50_|_53__13____6__|_0.50__0.05__0.24_|_738__136___87
I would guess that no amount of special sauce will get an FD past emissions without a cat in the US.
Test________CO2%__O2%______HC(PPM)________CO%_____ ____NO(PPM)______
______RPM_MEAS__MEAS__MAX_AVE_MEAS__MAX__AVE__MEAS _MAX__AVE__MEAS
15mph_1768_14.30__0.80_|_88__21___22__|_0.52__0.06__0.01_|_704__150__167
25mph_2922_14.40__0.50_|_53__13____6__|_0.50__0.05__0.24_|_738__136___87
test
3.5%? The limits in the US are significantly lower. Here is a recent California test showing maximum limits of 0.5%.
I would guess that no amount of special sauce will get an FD past emissions without a cat in the US.
Test________CO2%__O2%______HC(PPM)________CO%_____ ____NO(PPM)______
______RPM_MEAS__MEAS__MAX_AVE_MEAS__MAX__AVE__MEAS _MAX__AVE__MEAS
15mph_1768_14.30__0.80_|_88__21___22__|_0.52__0.06__0.01_|_704__150__167
25mph_2922_14.40__0.50_|_53__13____6__|_0.50__0.05__0.24_|_738__136___87
I would guess that no amount of special sauce will get an FD past emissions without a cat in the US.
Test________CO2%__O2%______HC(PPM)________CO%_____ ____NO(PPM)______
______RPM_MEAS__MEAS__MAX_AVE_MEAS__MAX__AVE__MEAS _MAX__AVE__MEAS
15mph_1768_14.30__0.80_|_88__21___22__|_0.52__0.06__0.01_|_704__150__167
25mph_2922_14.40__0.50_|_53__13____6__|_0.50__0.05__0.24_|_738__136___87
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Joined: Jul 2003
Posts: 4,678
Likes: 96
From: Bay Area, CA
Is your car an early '92? Later '92+ numbers seem to be a lot stricter:
(From: http://www.bobmckay.co.uk/p_emissions.html)
* First used before 1/8/1975 - Visual test only. Failure for excess idle speed, dense blue or black smoke for 5 seconds at idle or during acceleration up to 2500rpm or half engine max speed whichever lowest.
* First used between 1/8/75 and 31/7/86 - meter test CO <=4.5%, HC<=1200ppm.
* First used between 1/8/86 and 31/7/92 - meter test CO<=3.5%, HC<=1200ppm.
*
First used between 1/8/92 and 31/7/94 - advanced emission test (CAT) if its running on petrol when presented, to the vehicle specific limits usually around CO<=0.3%, HC<=200ppm and Lambda 0.97 - 1.03. Remember from 1st August 2001 a basic emission test will be carried out initially.
* First used between 1/8/75 and 31/7/86 - meter test CO <=4.5%, HC<=1200ppm.
* First used between 1/8/86 and 31/7/92 - meter test CO<=3.5%, HC<=1200ppm.
*
First used between 1/8/92 and 31/7/94 - advanced emission test (CAT) if its running on petrol when presented, to the vehicle specific limits usually around CO<=0.3%, HC<=200ppm and Lambda 0.97 - 1.03. Remember from 1st August 2001 a basic emission test will be carried out initially.
Joined: Jul 2003
Posts: 4,678
Likes: 96
From: Bay Area, CA
It looks like the cutoff is not an exact date:
http://www.imoc.co.uk/forums/viewtopic.php?p=544595
In any case, this information may help those in the UK. In the US, a functioning cat is necessary - and even some of those fail.
http://www.imoc.co.uk/forums/viewtopic.php?p=544595
In any case, this information may help those in the UK. In the US, a functioning cat is necessary - and even some of those fail.
