urgent help please
28 January 2012, 03:13 PM
#1
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urgent help please
Guys
need your advice please, im in the middle of taking my centre cat off to put on a de cat pipe but i cant find out where the lambda sensor couples to from the cat to the engine . I have to be out in 2hrs i just didnt think it would be a long job which it wouldnt if i could find the other end.
i have an sti typeuk 2003.
cheers
need your advice please, im in the middle of taking my centre cat off to put on a de cat pipe but i cant find out where the lambda sensor couples to from the cat to the engine . I have to be out in 2hrs i just didnt think it would be a long job which it wouldnt if i could find the other end.
i have an sti typeuk 2003.
cheers
28 January 2012, 03:27 PM
#2
AFAIK there is no sensor in the centre section.... are you talking about the down pipe.?
Why do you need to trace the origin of the lambda wire, (drivers side turret IIRC) just swap it from one pipe to the other.
Shaun
Why do you need to trace the origin of the lambda wire, (drivers side turret IIRC) just swap it from one pipe to the other.
Shaun
28 January 2012, 03:30 PM
#3
just done mine and no sensor on he centre pipe!!
28 January 2012, 03:38 PM
#4
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Thanks for the reply but there is deffo one on the centre and one on the down pipe. I have the centre cat off and i can see the sensor just cant follow the wires to the end.
cheers
cheers
28 January 2012, 03:43 PM
#5
http://www.scoobyworld.co.uk/catalog...sectiongif.gif
Centre section is just a pipe like the above...... does your de-cat replacement section have a sensor boss ?
Shaun
Centre section is just a pipe like the above...... does your de-cat replacement section have a sensor boss ?
Shaun
28 January 2012, 03:48 PM
#6
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yes mate. And the one i have taken off has the sensor in it already .
I thought the sti 03 has two cats ? well mine has one on the centre pipe coz im looking at it.
I heard before the one straight from the turbo is the main cat and then its splits on the elbow to the second cat which is where my decat pipe will go .
cheers
I thought the sti 03 has two cats ? well mine has one on the centre pipe coz im looking at it.
I heard before the one straight from the turbo is the main cat and then its splits on the elbow to the second cat which is where my decat pipe will go .
cheers
28 January 2012, 03:50 PM
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Trending Topics
28 January 2012, 04:01 PM
#8
From memory the blob STi has 4 sections from the Turbo back.
Downpipe (with cat and sensor), 2 intermediate sections (one with a cat), and then the back box....maybe someone with a Blob STi can offer help because I'm stumped..
Shaun
Downpipe (with cat and sensor), 2 intermediate sections (one with a cat), and then the back box....maybe someone with a Blob STi can offer help because I'm stumped..
Shaun
28 January 2012, 04:24 PM
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cheers for trying to help me out. im stuck as well now, i have just had a look at the pipe coming from the turbo to under the car (where i have split it) and i cant see a sensor on that upper part !!!!! it just looks like a smooth pipe all the way around . The problem i had to start with was i bought the car from a dealer and in the boot was an old decat pipe. I thought it had been taken off and the cat replcaced to get an mot.
The rest of the system i think is an H&S, if i put this de cat pipe on and it has only the one cat im removing i dont know if its been mapped.
I need help, the wife has fallen out with me as the cars in bits and i should have been going out .
I could do with images of an original system but i cant find any for the sti.
cheers
The rest of the system i think is an H&S, if i put this de cat pipe on and it has only the one cat im removing i dont know if its been mapped.
I need help, the wife has fallen out with me as the cars in bits and i should have been going out .
I could do with images of an original system but i cant find any for the sti.
cheers
28 January 2012, 04:31 PM
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i saw them but then i thought it would need re mapping if i did away with all the cats . Now i dont know if its only got one. Im going to try and upload pics to show you what stahe im at .
cheers
cheers
28 January 2012, 04:45 PM
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this is the down pipe end
This is the cat im replacing
This my next straight section
Then it goes to the back box
I dont know where the other cat is meant to be, i was told there should be one in the down pipe but i cant see it.
Fed up now
This is the cat im replacing
This my next straight section
Then it goes to the back box
I dont know where the other cat is meant to be, i was told there should be one in the down pipe but i cant see it.
Fed up now
28 January 2012, 04:50 PM
#14
Peter Zippy
http://www.ebay.co.uk/itm/IMPREZA-2-...d=310882197613
Looking at the above link, what has hairdye bought?
Shaun
http://www.ebay.co.uk/itm/IMPREZA-2-...d=310882197613
Looking at the above link, what has hairdye bought?
Shaun
28 January 2012, 04:53 PM
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Ok, so is there another cat somewhere ? and am i ok to replace the pipe? saying that im still stuck on the question i came on here for which was where does the lambda sensor wire go.
God i hate cars
God i hate cars
28 January 2012, 05:10 PM
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Thanks guys, sorry for being a bit thick but i appreciate your help.
Below is a picture of where the new pipe fits , not sure if i can take the other pic you want as the pipe is still on the car.
If off to see if i can take the other pic.
cheers
Below is a picture of where the new pipe fits , not sure if i can take the other pic you want as the pipe is still on the car.
If off to see if i can take the other pic.
cheers
28 January 2012, 05:15 PM
#24
http://www.scoobypedia.co.uk/index.p...e/DecatExhaust
this is the exhaust system look at the downpipe it splits into two if you can look at your downpipe from there and see if you can get a pic
this is the exhaust system look at the downpipe it splits into two if you can look at your downpipe from there and see if you can get a pic
28 January 2012, 05:19 PM
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bit confused to be honest.
2nd cat pipe has a lambda sensor in it. this joins to the rest of the vehicle wiring via a connector along the side of the gearbox.
there is another lambda sensor before the turbo.
swap the lambda from cat pipe to decat pipe and fit. mapping should then be checked to ensure reliability of the engine.
if downpipe has no cat and decat pipe used then car will fail MOT and engine light will come on (unless turned of during mapping ).
2nd cat pipe has a lambda sensor in it. this joins to the rest of the vehicle wiring via a connector along the side of the gearbox.
there is another lambda sensor before the turbo.
swap the lambda from cat pipe to decat pipe and fit. mapping should then be checked to ensure reliability of the engine.
if downpipe has no cat and decat pipe used then car will fail MOT and engine light will come on (unless turned of during mapping ).
28 January 2012, 06:34 PM
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Ok i have tried to get another picture but its not a good one.
This is taken from the engine bay looking down at the turbo . The pipe from the turbo has no sensor its just one smooth pipe from turbo to under the car .
DT-SPD does this mean its been decatted then if this pipe is smooth?
Zippy, thats what started the argument. women they just dont understand!!!
Do you guys think i should just put this pipe on and have it put on the dyno to see if its mapped already ?
Will it harm the car in the mean time if its not mapped.
thanks guys
This is taken from the engine bay looking down at the turbo . The pipe from the turbo has no sensor its just one smooth pipe from turbo to under the car .
DT-SPD does this mean its been decatted then if this pipe is smooth?
Zippy, thats what started the argument. women they just dont understand!!!
Do you guys think i should just put this pipe on and have it put on the dyno to see if its mapped already ?
Will it harm the car in the mean time if its not mapped.
thanks guys