100% main fuel relay. for sure. its summer time. the main relay is probably the original, in the heat, these things tend to get old. the circuits are known for drying out and cracking. get a new one. in the mean time. before you start your car, tap it with ur hand or anything else. it is located under the dash above the fuse box, has a brown plug going into it. please dont listen to these people when they say its the distributor. its not. i had that car for over a year. i kno for a fact