ivanshinoda

Hi, I Have a 1990 toyota 4runner sr5 2wd 22r, hope you can help, when i start it ''cold start' it idle normal, but when i driven for 20 minutes, the rpms goes so low that the engine die, i can start it again with no problem, but i goes off again, and when do that, i hear a relay click in the passengers side, i take it to local mechanic, but he don't know whats going on, compression is 120psi, ignition timing good, new spark plugs, plug cables, rotor, distruibutor cap, all new, i don't know what it can be, hope somebody know how to fix this, thank you.... and excuse my english.