enigine cut every 5 sec for first 15 min

[Denis]

Hi , I have a  100Q 1989 2.3 5cyl. CSI-3

For the first 15 minutes:

The engine cut every 5 sec, then 10 sec, then 20 sec ... etc until 15 min where it cut sometime, even the engine is warm after 5 min.

I tried my other sparkplug wires, distr cap. the fuel pump is only couple months.....

The engine cut maybe 1/5 sec to 3/4 seconde long. It seems its the fire cause it cut then run , cut then run.... the cut is so sharp that it cant be the fuel pump or the fuel system.

After 15 min it continue to cut but at very large delay and randomly...

thanks

Ðenis