I have recently changed the alternator after it died in my diesel Yaris. I have done about 150 miles with the new alternator however it still doesn't start very well. It now takes 1 long or sometimes 2 starts and the engine sounds like its choking. The check engine light (CEL) is also on.
Do I need to manually charge the battery, change the battery or something more sinister? I need to do a long journey at the end of the week.