I have a 2015 1.6 turbo diesel model. I've had it since it was 12 months old and added 60k miles to the original 8k miles when I bought it. It gets run on a dual carriageway almost every day running at 70mph or more ;-) Over the weekend it dropped into limp mode when I was accelerating. The engine management light came on. I finished part of my journey and stopped for a while. When I started up again the light was still on but the engine was running OK until I accelerated hard when limp mode cam on again. That was repeated several times. This morning my wife drove 20 miles to work and by being light footed she coaxed it up to 70mph with no limp mode. We will be booking it in for a service (due soon) and to get it looked at. We tend not to use Honda dealers so I was wondering if anyone has ay ideas as to what is causing the problem?