Author Topic: mk4 gti failed mot today  (Read 1868 times)

Offline dopeydean

  • Not said much yet
  • **
  • Posts: 44
mk4 gti failed mot today
« on: 12 May 2012, 17:12 »
hi all my 2000 golf gti mk4 failed the mot today only on immisions co2 is ment to read 3 and mine was reading 13 lol any idea,s like common faults ???????

Offline Wazzzer

  • Moderator
  • 10k hero
  • *****
  • Posts: 11,172
  • Golf GTI 1.8T AGU
Re: mk4 gti failed mot today
« Reply #1 on: 12 May 2012, 17:18 »
dead cat or lambda


1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline navmk4gti

  • Forum addict
  • *
  • Posts: 4,453
Re: mk4 gti failed mot today
« Reply #2 on: 12 May 2012, 23:20 »
you dont have an mot "friend"  :lipsrsealed:

as said lambda sensor or you prob got it decated is it remapped as iv been told that throws up different readings too i never had prob with my previous AGU that was de- cated  :grin:
theonestopLEDshop - upgrade LED lighting, car badges, wheel caps etc

Facebook/Instagram: @theonestopledshop
Website: https://www.theonestopledshop.com/

Drop me a message for more info and discounts!


Offline Wayne

  • Sir Postalot
  • *
  • Posts: 32,051
Re: mk4 gti failed mot today
« Reply #3 on: 13 May 2012, 00:11 »
Have you checked / scanned it for any codes.

Offline dopeydean

  • Not said much yet
  • **
  • Posts: 44
Re: mk4 gti failed mot today
« Reply #4 on: 13 May 2012, 20:12 »
put it on a diagnostics machine today came up with faulty lamba/slight missfire on more than 1 cylinder/temp sensor

Offline Chris.

  • I live here
  • *****
  • Posts: 1,916
Re: mk4 gti failed mot today
« Reply #5 on: 14 May 2012, 19:04 »
Start with the temp sensor.

Click For Build Thread

248bhp  278lbft R - Tech Powered 1.8T!!  - Gone but NOT forgotton

Offline dopeydean

  • Not said much yet
  • **
  • Posts: 44
Re: mk4 gti failed mot today
« Reply #6 on: 14 May 2012, 21:07 »
replaced it today £8.50 was going to change the lamba but it a f@?>er to get out

Offline Chris.

  • I live here
  • *****
  • Posts: 1,916
Re: mk4 gti failed mot today
« Reply #7 on: 14 May 2012, 21:13 »
Not that hard if you know how ;)

Hammer the hell out of the area around the lambda (where the thread is in exhaust pipe) and then get your 21mm spanner and comes straight out.

Click For Build Thread

248bhp  278lbft R - Tech Powered 1.8T!!  - Gone but NOT forgotton

Offline dopeydean

  • Not said much yet
  • **
  • Posts: 44
Re: mk4 gti failed mot today
« Reply #8 on: 15 May 2012, 18:49 »
took it to a local garage today just to see what the immisions was like after changing the temp sensor and it will pass now lmao just over a little sensor

Offline Chris.

  • I live here
  • *****
  • Posts: 1,916
Re: mk4 gti failed mot today
« Reply #9 on: 15 May 2012, 22:35 »
Simple fix then!  Saves £60-80 on a new lambda or £££'s on a cat.

Click For Build Thread

248bhp  278lbft R - Tech Powered 1.8T!!  - Gone but NOT forgotton