89 4runner Missing When Warm

Hi Folks, Just Bought A Totota 4runner 4cyl Efi That Misses When Warm. At A Low Idle It Runs Rough But At A Higher Rpm It Seems To Be Fine . Any Help Please.

Focus on your secondary ignition components spark plugs, wires, rotor and distributor cap.
pay close attention to the sparkplug gap. Check plugs for fouling or other anomalies.
A compression check will reveal any weak cylinders that may cause the feeling of a misfire.