2001 Isuzu Trooper Transmission problems.

scanman0000

Have 4x2 automatic rebuilt at 13108 miles now has 14156 and no low gear just revs up. d works just a little slow on take off. I was told it is the shift sensor. Could it be that. Check trans light flashes.

Mr_Shiftright

First thing you need to do is read that code. This might require a professional scanner rather than a simple code reader.