lambar senser query

1. syvtr Frequent Poster Joined: Jun 2007 Kirkby-in-ashfield, notts Posts: 660 subaru impreza terzo

   #1 27th June 2007, 14:58

   Had a piper manifold fitted yesterday by a garage and they took 1 of the sensors off which led the engine mangement light to cum on so i took it bk and they reconnected the sensor n tie wrapped it to the engine should this bring the light bk on if so how can i stop it
2. craigy_87 Saxperience Post Whore Joined: Apr 2006 Wishaw United Kingdom (Scotland) Posts: 7326 Nissan 350z

   #2 27th June 2007, 15:02

   you can buy a sleeve (sleave, sp!) which the sensor plugs into, this will stop the engine managment light coming on.
   i think its GMC that make one, i may be wrong tho
3. syvtr Frequent Poster Joined: Jun 2007 Kirkby-in-ashfield, notts Posts: 660 subaru impreza terzo

   #3 27th June 2007, 15:04

   i meantioned that to the mechanic n he was saying sum shit bout that would just make it being same as it just beening connected
4. saunders Saxperience Forum Bum Joined: May 2006 Kent Posts: 3669 Fiat Seicento, MK2 Furio 2000 X, Pug 206

   #4 27th June 2007, 15:09

   Quote:

   Originally Posted by syvtr i meantioned that to the mechanic n he was saying sum shit bout that would just make it being same as it just beening connected

   The bloke is right, but by having it just tied out of the way your risking water etc getting to it causing the sensor to fail. Plus it gets very hot, so a sleeve is the safest bet:
   
   http://www.gmcmotorsport.co.uk/
   
   its only 12quid
5. Luke_vts Frequent Poster Joined: Jan 2007 Herts Posts: 645 vts

   #5 27th June 2007, 15:10

   the mechanic is right. the sleeve doesnt always work
   
   EDIT: it prevents a fire occuring. The light will always come on if the ECU is working properly
6. Luke_vts Frequent Poster Joined: Jan 2007 Herts Posts: 645 vts

   #6 27th June 2007, 15:11

   Quote:

   Originally Posted by saunders The bloke is right, but by having it just tied out of the way your risking water etc getting to it causing the sensor to fail. Plus it gets very hot, so a sleeve is the safest bet: http://www.gmcmotorsport.co.uk/ its only 12quid

   £24.50 after VAT and Postage lol!
7. saunders Saxperience Forum Bum Joined: May 2006 Kent Posts: 3669 Fiat Seicento, MK2 Furio 2000 X, Pug 206

   #7 27th June 2007, 15:12

   Quote:

   Originally Posted by Luke_vts £24.50 after VAT and Postage lol!

   still I would be very inclined to get one, or make my own
8. saunders Saxperience Forum Bum Joined: May 2006 Kent Posts: 3669 Fiat Seicento, MK2 Furio 2000 X, Pug 206

   #8 27th June 2007, 15:13

   btw why would the sleeve not always work?
9. Luke_vts Frequent Poster Joined: Jan 2007 Herts Posts: 645 vts

   #9 27th June 2007, 15:17

   I dont know the mechanical info behind it but I believe the ECU puts the EM light on as the reads too big a difference in the exhaust gases flowing into and then out of the cat.
   
   There is a sensor before the cat in the downpipe and one after the cat. The ECU thinks something is wrong as it is reading high CO2 before the cat and then clear 02 after.
   
   The big difference in C02 puts the EM light on as it thinks something is wrong
10. saunders Saxperience Forum Bum Joined: May 2006 Kent Posts: 3669 Fiat Seicento, MK2 Furio 2000 X, Pug 206

    #10 27th June 2007, 15:19

    Ok well iv heard from lots of people that these do work, although im yet to get my manifold from GMC, but when I do il be getting a sleeve
11. Luke_vts Frequent Poster Joined: Jan 2007 Herts Posts: 645 vts

    #11 27th June 2007, 15:19

    Personally I didnt like my car decatted as it sounded like a tank in 5th gear. Not to mention the fine you get if the police check your car
12. saunders Saxperience Forum Bum Joined: May 2006 Kent Posts: 3669 Fiat Seicento, MK2 Furio 2000 X, Pug 206

    #12 27th June 2007, 15:23

    Quote:

    Originally Posted by Luke_vts Personally I didnt like my car decatted as it sounded like a tank in 5th gear. Not to mention the fine you get if the police check your car

    did you manage to resolve the EM light coming on in the end? or is that why you changed it back over?
13. Luke_vts Frequent Poster Joined: Jan 2007 Herts Posts: 645 vts

    #13 27th June 2007, 15:29

    the EM light stayed off for about 3 days with the sleeve on. I simply stuck black tape over the light LOL but I was worried the light being on might affect the car in the long run so put the cat back on. If the light had stayed off I probably wouldnt have changed it back just for the hassel.
    
    As for power gains I didnt see/feel any so didnt see the point in having a decat - just adding more to global warming, meaning more rain in June lol!!
14. saunders Saxperience Forum Bum Joined: May 2006 Kent Posts: 3669 Fiat Seicento, MK2 Furio 2000 X, Pug 206

    #14 27th June 2007, 15:31

    Quote:

    Originally Posted by Luke_vts the EM light stayed off for about 3 days with the sleeve on. I simply stuck black tape over the light LOL but I was worried the light being on might affect the car in the long run so put the cat back on. If the light had stayed off I probably wouldnt have changed it back just for the hassel. As for power gains I didnt see/feel any so didnt see the point in having a decat - just adding more to global warming, meaning more rain in June lol!!

    So what your saying is the sleeve didn't work for your car then?
15. FILVTR Regular Poster Joined: Oct 2006 Manchester Posts: 440 VTR '52.

    #15 28th June 2007, 11:46

    My engine manageent light is on constant. Just lights up thinking there's a problem with your cat (as it's not doing it's job of cleaning the fumes). No biggie really, as the car is apparently meant to run too rich and over-fuel, but I haven't ever noticed the difference at all tbh.
    
    I got a spare GMC sleeve for the lambda if you want it. £20 inc delivery (still in wrapping - unopened). PM if wanting...