Last week car was running fine, then glowplug light came on during a journey. Went into limp mode and next day car wouldn't start. Local garage took it to local diesel specialist who diagnosed that the injectors needed recoding. He said he used brand new codes and he also wipe everything clear and tested all four injectors. Even though the car is on 130,000, supposedly all four perform like they're brand new.

Since I've had the car back, when the car is left for a number of hours and then started, the idle is quite lumpy and jumps about between 600-1000 revs, but only for about 30 secs, then levels out normally. I was quite a cold morning this morning and even though I turned the glowplug lights on and off three times it was quite a pain to start.

After the 30 seconds from starting, the car runs and performs perfectly. To note, I cleaned and blanked the egr a few months back, the fuel filter is changed every year (last in december) I use super (non supermarket) diesel, the cam sensor has already been changed and the glow plugs are only about a year old.

Anyone have any ideas????