Having a bit of trouble with my Astra 1.4 16v LS (52 reg). Engine Management light is on permanantly and starts flashing when i reach 30 miles per hour. Had a diagnostics check done which states multiple misfires, i had a new coil pack put on 2 months ago and changed the spark plugs yesterday, but still no improvement. Its also really sluggish when going uphill and the car feels like its pulling/chugging, the revs counter also drops from 10 to 5 when car is idle at lights/give way, which means i have to ride the clutch a bit to stop stalling.
Can anyone offer any advice as its driving me crazy!