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Model specific boards => Golf mk4 => Topic started by: dopeydean on 12 May 2012, 17:12

Title: mk4 gti failed mot today
Post by: dopeydean 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 ???????

Title: Re: mk4 gti failed mot today
Post by: Wazzzer on 12 May 2012, 17:18

dead cat or lambda

Title: Re: mk4 gti failed mot today
Post by: navmk4gti 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:

Title: Re: mk4 gti failed mot today
Post by: Wayne on 13 May 2012, 00:11

Have you checked / scanned it for any codes.

Title: Re: mk4 gti failed mot today
Post by: dopeydean 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

Title: Re: mk4 gti failed mot today
Post by: Chris. on 14 May 2012, 19:04

Start with the temp sensor.

Title: Re: mk4 gti failed mot today
Post by: dopeydean 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

Title: Re: mk4 gti failed mot today
Post by: Chris. 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.

Title: Re: mk4 gti failed mot today
Post by: dopeydean 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

Title: Re: mk4 gti failed mot today
Post by: Chris. on 15 May 2012, 22:35

Simple fix then!  Saves £60-80 on a new lambda or £££'s on a cat.