My 1999 LHD 105 JTD injection system warning light has been illuminating on dash for last few days. Started in France after 100 miles or so light came on and cut engine. Then won't start, but after cooling, was able to continue journey to Calais. Happened again in UK, got breakdowservice to recover home. Last time this happened ( 5 years ago ) a sensor/switch/valve near clutch pedal was replaced, which did the trick ( though took Fiat about a month to get part 'cos didn't have part number ! ). Now use independent garage.they want to replace glow plugs. Searched all Multipla threads, but can't find anyone with similar trouble. Anyone had same problem. I'm not convinced glow plugs would light injection system fault !