I have a 1999 Landrover Discovery II with 65,000 miles on it . The service engine light came on and all of a sudden it started to putt and lose power like it wants to shut down and the service engine light constantly flash.

What can this be

Thanks

 

You need to go get your codes read, there are too many thing to think about, no since guessing about it.
Go see your local auto part store, usually they will do this for free. Get the exact fault code numbers and get back to us.
Mike