when driving for a period of around 10 mins at anything over 70mph my car seems to slow a little (bit like hitting a gust of wind head on) for a second or 2 then regains speed but the engine check light comes on. If i slow to under 70 it goes back off, can anyone shed some light as to whats happening?
vx astra estate
y reg
diesel
vx astra estate
y reg
diesel