the pilot shuts off when the main gas valve does. then after some time it does energize the pilot solenoid and then sparks soon after the main burner lites up. i am getting 15.7 vdc at my fire eye at all times. the problem i see is when the interface cycles the main valve off maybe i need the mp101 for a dg burner? it does relite ok. this is a hard one to grasp. too many guys working on this thing over the years and who knows if all the parts are what is supose to be in there. the spark ignitor and sensor are new.