injector wiring loom/ wire harness/tdi misfire

[jaz205gti]

Hi folks I need some help , got big jobs coming up on my tdi sport cam belt/ service suspension etc so big bucks !!!!!!
However iv got a slight problem when the car is idling when fully warm? It judders and shakes the car , I know lots of people have similar symptoms . Its not the maf as I just recently replaced it and my car has more power and mpg. I took it to a specialist and no error codes however the guy said its most likely the wiring harness in cylinder head or wiring loom as most call it ,

Iv never come across this but after my research its a common thing to go ?
My question is has anybody else come across this problem , will it effect performance or mpg as maybe its not firing the cylinders properly ?
Can it be changed diy as garage charging 2 hrs labour !!
don’t want to be throwing money at it just to solve little problems, loom is around £40 as its not that expensive
help please

 

[conkerman]

I had that on my beezer.

Had a proper misfire, took about an hour to fit the new loom. Its a pants design.

Would probably clean up but the loom was £40.

COnks

 

[mikko22]

judder and shakes the car

Hi folks I need some help , got big jobs coming up on my tdi sport cam belt/ service suspension etc so big bucks !!!!!!
However iv got a slight problem when the car is idling when fully warm? It judders and shakes the car , I know lots of people have similar symptoms . Its not the maf as I just recently replaced it and my car has more power and mpg. I took it to a specialist and no error codes however the guy said its most likely the wiring harness in cylinder head or wiring loom as most call it ,

Iv never come across this but after my research its a common thing to go ?
My question is has anybody else come across this problem , will it effect performance or mpg as maybe its not firing the cylinders properly ?
Can it be changed diy as garage charging 2 hrs labour !!
don’t want to be throwing money at it just to solve little problems, loom is around £40 as its not that expensive
help please

hi, i have same problem on my seat altea tdi sport. no error codes,new flywhell,all injectors checked,new fuel temp sensor,gearbox checked,.. still judder just when warmed up and under load when acelerate. did u fix your problem?? any help is welcome. i all ready spend 1800pounds