Took my partner to work today and noticed the car was a bit slugglish, on the way back acceleration was slow and the car wouldnt get past 60 on the dual carriageway. The orange coil warning light came on and didnt go off until I switched the car off at home (about 3 miles later). Whats the problem with it? The handbook isnt helpful at all, and is very vague about what the problem could be (electronics i think it said?). This has happened before but only lasted for a couple of seconds and then thinks got back to normal.