All Things Mk5 > How to Guides / Troubleshooting
Juddery and Lumpy on Idle Please Help
wardygt:
Hi it is in the garage it is NOT
-Injector loom
-Dirty injectors
-Maf senor
-EGR
-ECU issue
-Fuelling issue
It is becoming a mystery and is having all these different tests but still is the issue is not resolved
Does anyone know what else it could be?
john87:
PCV valve possibly need replaced? I'm sure this would cause lumpy/poor idle..
boustie:
Are there any faults in it ?
jason_rmh:
--- Quote from: john87 on January 28, 2015, 06:58:34 pm ---PCV valve possibly need replaced? I'm sure this would cause lumpy/poor idle..
--- End quote ---
TDIs don't have a PCV do they?
My TDI is a bit lumpy. One thing to check is the timing torsion value and injection quantities using vcds.
If injection quantities are out it could pin point the issue to a particular cylinder.
I'm about to start checking this on mine.
Jas
wardygt:
--- Quote from: boustie on January 30, 2015, 08:36:57 pm ---Are there any faults in it ?
--- End quote ---
no faults, they are saying
all fine starting from cold until say 2mins (maybe less) of running the lumpiness starts
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