03 tdi galaxy missfire

[Paul Barker]

HI.GOT A 03 TDI GALAXY.STARTS PERFECT, LAEVE IT TO WARM UP FOR 10 MINS ITL RUN ALL DAY NO PROBS.IF I START IT AND DRIVE STRAIGHT AWAY ITS OK FOR AROUND 8-10 MINS THEN ITL MISSFIRE AND START RUNNING ON 3 CYLINDERS THERE IS A ORANGE LIGHT THAT APPEARS ON DASH.I HAVE TO PULL OVER TURN IT OFF AND RESTART THEN IT WILL RUN FINE.IT STARTS MISSFIRING AT THE SAME POINT EVERYDAY TO AND FROM WORK.ITS DRIVING ME MAD.WHAT CAN IT BE. FUEL SYSTEM FINE PUMP FINE.DID HAVE  A NEW WIRING LOOM IN HEAD JUST BFORE I BOUGHT IT

[johnnyroper]

Plug it in and read codes first,could be injector or loom fault but you need code first to point in right direction.

[Chrispb]

Hi Paul 

Please don't use all upper case!!

You need to scan the system to confirm that there's no electrical fault in the injector wiring as that sounds like a dodgy injector loom/connectors

[Mirez]

Fuel system fine and pump fine... how do you know that? New wiring loom or replacement loom? It's not unknown for places to swap them with old looms from another car...