Audi A4 19TDI missing juddering

[ozzbhai]

Hi just recently bougth a a4 and when weather got cold started to miss fire juddering and esp light came on was told by a machanic that glow plug gone so changed all 4 but still same problem then put injecter cleaner in the oil filter still the same after a few hours driving started running fine afte a hour started missing juddering again and the esplight came on. started it this mring and its ran pefect for half a hour and missing and juddering started again

Need some advice as have rang around and everyone is telling me a differnt fault .injecter down. loom. air flow sensor

[Crasher]

Don’t guess or take notice of anyone else’s guess, get it fault code read. This will probably show an electrical fault on cylinder 1 which is usually the in head loom and this is easy and cheap to replace.

[ozzbhai]

Many thanks will try to find a machani witha fault code machine

[chris_r]

I've got one of these...

http://cgi.ebay.co.uk/LATEST-VAG-HANDHELD-DIAGNOSTIC-FAULT-CODE-READER_W0QQitemZ380177955637QQcmdZViewItemQQptZUK_ Diagnostic_Tools_Equipment?hash=item58845f3b35

Cheap and it works.