Author Topic: Interesting fact  (Read 8997 times)

chrismec

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Interesting fact
« on: November 17, 2005, 08:11:13 PM »
When u take ur car 4 mot tester puts reg no into puter an it tells him wot gas test 2 do, not all K reg cars have 2 have cat test. My 93 K dippy comes up non cat [even tho it has 1 fitted or used 2].

ian

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Re: Interesting fact
« Reply #1 on: November 17, 2005, 10:22:25 PM »
lol mine runs on gas so cant fail!
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blippi

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Re: Interesting fact
« Reply #2 on: November 20, 2005, 01:12:04 AM »
hmmm very interesting will have 2 find out bout this :) is this likly 2 be the case 4 all 'k' reg carltons or more of a lottery anymore gen?

Pedro

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Re: Interesting fact
« Reply #3 on: November 20, 2005, 10:00:29 AM »

You have to take the V5 to the MOT station now - my old K reg Calibra redtop passed with no cat, guy said it just missed needing cats.

I think it was first registered 3/8/93.

chrismec

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Re: Interesting fact
« Reply #4 on: November 20, 2005, 07:45:12 PM »
No need to take v5 puter gives him all information he needs. my dippy registered 26/01/93.

discojay

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Re: Interesting fact
« Reply #5 on: January 13, 2006, 05:56:06 PM »
My K reg Gsi also passed MOT without cat's even though i had had them removed about two weeks before

Murph

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Re: Interesting fact
« Reply #6 on: January 13, 2006, 06:49:35 PM »
My K plate had to have a CAT test!   :-[

ian

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Re: Interesting fact
« Reply #7 on: January 13, 2006, 08:51:22 PM »
L reg no cat test ::)
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Murph

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Re: Interesting fact
« Reply #8 on: January 14, 2006, 12:52:01 PM »
SEH from a Cav..... ::)

Diplo-Matt

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Re: Interesting fact
« Reply #9 on: February 05, 2006, 10:53:36 PM »
Front what month in the year did they have to have CATS?
I like what I say and I say what I bloody well like!!!!

bstardchild

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Re: Interesting fact
« Reply #10 on: February 05, 2006, 11:09:02 PM »
Front what month in the year did they have to have CATS?
August 1992
Cheers

BC

"The Lotus Carlton is not tail happy – honestly -  as long as you accept it has 377 bhp and 419 lb/ft of torque, is rear drive and has no driver aids, it's fine."

carlton_mad

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Re: Interesting fact
« Reply #11 on: February 05, 2006, 11:18:03 PM »
BUT some vehicles or rather manufacturers struggled to meet the regs so you can get cars up to an Mreg that are non cat but theoretically they shouldnt be
what would life be like if we all drove fwd cars? feckin boring that's what rear drive or bust

Diplo-Matt

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Re: Interesting fact
« Reply #12 on: February 11, 2006, 08:23:28 PM »
Aside from getting the MOT tester to check, is there any other way i can find out if it needs cats? Mine needs a new exhaust might de-cat it while im at it?
I like what I say and I say what I bloody well like!!!!

blippi

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Re: Interesting fact
« Reply #13 on: February 12, 2006, 02:48:49 PM »
my k-reg dippy also needs to keep the cat  >:(

GSI 3000 Newbie

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Re: Interesting fact
« Reply #14 on: February 27, 2006, 12:23:34 PM »
Front what month in the year did they have to have CATS?
August 1992

Right ..thats it..my cats going from my 1990 GSI..
Time to find some pipes to replace it....WooHoo a little bit more power..
Oh hang on.....what do i do with the lambda sensor???
Drifting Carlton GSI's like heaven.

bstardchild

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Re: Interesting fact
« Reply #15 on: February 27, 2006, 12:40:43 PM »
Front what month in the year did they have to have CATS?
August 1992

Right ..thats it..my cats going from my 1990 GSI..
Time to find some pipes to replace it....WooHoo a little bit more power..
Oh hang on.....what do i do with the lambda sensor???

Pipes avaliable from ABS - £35 per pair
Lambda sensor stays - it is pre cats so doesn't know they have gone
Really do need a MKIII chip to get best out of de-catting or it will be a bit breathless at the top end
Cheers

BC

"The Lotus Carlton is not tail happy – honestly -  as long as you accept it has 377 bhp and 419 lb/ft of torque, is rear drive and has no driver aids, it's fine."

GSI 3000 Newbie

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Re: Interesting fact
« Reply #16 on: February 27, 2006, 04:45:57 PM »
Front what month in the year did they have to have CATS?
August 1992

Right ..thats it..my cats going from my 1990 GSI..
Time to find some pipes to replace it....WooHoo a little bit more power..
Oh hang on.....what do i do with the lambda sensor???

Pipes avaliable from ABS - £35 per pair
Lambda sensor stays - it is pre cats so doesn't know they have gone
Really do need a MKIII chip to get best out of de-catting or it will be a bit breathless at the top end


Thanks BC..
 WTF is a MK III chip when it's at home ???
Sorry for all the q's but when it gets too technical im a bit on the thick side  ???  ???  :D
P.S just read your thread about lambda sensor and testing it..now i know where it goes  ;D  ;D  ;D
« Last Edit: February 27, 2006, 06:17:10 PM by GSI 3000 Newbie »
Drifting Carlton GSI's like heaven.

Scatmancraig

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Re: Interesting fact
« Reply #17 on: February 27, 2006, 06:55:37 PM »
Mk III chip is for your ECU & is available from the ABS club.  They basically compensate for lack of backpressure by increasing fuel (caused when removing cats).  They also raise the rev-limiter a touch so you don't drop below the magic 4000rpm when changing gear (in a manual car).  If you've just joined ABS then get in touch with Will Reeve as he makes them & he will give you all the details.  Have just got one myself but haven't fitted it yet as still need the cats for my forthcoming MOT!

You can sometimes get Blitzchips for 24v GSi's off ebay, usually around £40ish but i don't know if they're any good?

bstardchild

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Re: Interesting fact
« Reply #18 on: February 27, 2006, 09:47:45 PM »
Mk III chip is for your ECU & is available from the ABS club.  They basically compensate for lack of backpressure by increasing fuel (caused when removing cats).  They also raise the rev-limiter a touch so you don't drop below the magic 4000rpm when changing gear (in a manual car). 

From 1st - 2nd - not needed for the other gears

If you've just joined ABS then get in touch with Will Reeve as he makes them & he will give you all the details. 

Or on here you can talk to me

Have just got one myself but haven't fitted it yet as still need the cats for my forthcoming MOT!

And who did you get it from  ;D

You can sometimes get Blitzchips for 24v GSi's off ebay, usually around £40ish but i don't know if they're any good?

Not very impressed - bit of a cut and shut as he hasn't sussed the checksum aspect!!
Cheers

BC

"The Lotus Carlton is not tail happy – honestly -  as long as you accept it has 377 bhp and 419 lb/ft of torque, is rear drive and has no driver aids, it's fine."

Scatmancraig

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Re: Interesting fact
« Reply #19 on: February 27, 2006, 10:14:08 PM »
Not very impressed - bit of a cut and shut as he hasn't sussed the checksum aspect!!
What does that mean??  Last time i saw the word "checksum" i was trying to type in an old basic program on my Spectrum!!!

bstardchild

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Re: Interesting fact
« Reply #20 on: February 27, 2006, 10:34:22 PM »
Not very impressed - bit of a cut and shut as he hasn't sussed the checksum aspect!!
What does that mean??  Last time i saw the word "checksum" i was trying to type in an old basic program on my Spectrum!!!

Then it would be relevant to the topic........  ;)
Cheers

BC

"The Lotus Carlton is not tail happy – honestly -  as long as you accept it has 377 bhp and 419 lb/ft of torque, is rear drive and has no driver aids, it's fine."

Scatmancraig

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Re: Interesting fact
« Reply #21 on: March 02, 2006, 08:09:58 PM »
Not very impressed - bit of a cut and shut as he hasn't sussed the checksum aspect!!
What does that mean??  Last time i saw the word "checksum" i was trying to type in an old basic program on my Spectrum!!!

Then it would be relevant to the topic........  ;)

Still none the wiser???  (it's been a long day, came home to find one of my cats had been run over - unfortunately he didn't make it, poor thing)

bstardchild

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Re: Interesting fact
« Reply #22 on: March 03, 2006, 01:30:28 AM »
Not very impressed - bit of a cut and shut as he hasn't sussed the checksum aspect!!
What does that mean??  Last time i saw the word "checksum" i was trying to type in an old basic program on my Spectrum!!!

Then it would be relevant to the topic........  ;)

Still none the wiser???  (it's been a long day, came home to find one of my cats had been run over - unfortunately he didn't make it, poor thing)

Sorry to hear about your cat - you know what I'm like with cats!!!

Checksum

All the bits and bites add up to a value

- that value is written to a specific place in the chip

- the ECU self checks itself by adding em all up and comparing the result with the stored value

If it equals stored value woo hoo no probs

If it doesn't - limp home mode full rich and bugger all performance

So if you don't know whee the checksum is in the chip all you can do in the maps is rob peter to pay paul - this means yes you getmore bhp but you often lose everywhere else........ It's basically a hack!!!!

A proper chip will have the maps changed as needed and then the checksum value is changed to suit the maps - ergo no hack and no robbing peter to pay paul

MKIII in your 24V ECU is exactly that  ;D

Cheers

BC

"The Lotus Carlton is not tail happy – honestly -  as long as you accept it has 377 bhp and 419 lb/ft of torque, is rear drive and has no driver aids, it's fine."

mick carrington

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Re: Interesting fact
« Reply #23 on: March 03, 2006, 07:02:32 PM »
Been told today that if your car passes emission test without cats, then it doesnt need em, same as any car doesnt have to have cats, but, if it dont pass test then obviously they will av to go bak on! Spose its worth a punt.