Hello, all, I have a 2000 Montero Sport, general say, this car is so far so good except sometime I experienced "service engine soon" problem, sometime on, somethime off.

I believe I am not the only to have this problem, recently I had this signal again, I checked at Autozone, code number is P0170(Fuel compensation value for bank 1 exceeded the specified range)  any one can give a suggestion to fix it? TKS