Mirage 90 problem

First of all God bless you and pleasure.

Look that my problem is that this car has a failure when heating when the temperature reaches half when accelerating it makes a failure of revolutions ñan ñan Ñan but does not pass from 1500 rpm and when cold is cold the engine does not do it when disconnecting the temperature sensor is improved about two seconds and it returns to do the same. Thank you very much in advance.

Hello God bless you, well don't know if you already meditate on the resistance of the ignition coil when it is at normal operating temperature, and the pressure pump pressure?