HAs anyone else experienced this. I have a DTUK box fitted, never had any issues over the last 4 months or so. Gave it a good rag from 1st to 3rd then all of a sudden this appears on the dash and the power just totally goes. Like really goes!!! I was in 5th, thought id drop to 4th, still hardly any acceleration. Googled it and it appears to be a glow plug light issue? Is this due to me ragging it or an issue with the car or both? I restarted the car and all appears well. Any thoughts would be appreciated.