Car stall usually after coming to a stop after longer period.

[DavisT]

I've had a '99 Automatic 4Runner Limitted with 90k miles for about 3 years. The truck runs well with no problems but for the last several weeks the engine light on and I cleaned MAF sensor and the light went off. The second problem is (once a week) tendency to stall (completed powerout) usually after coming to a stop after longer periods of driving (usually highway). Please help me how to fixing the problem, and I am appreciated very much.