I need help. I have a 1997 Miata that I have been having problems with for a year. I have replaced the cam sensor, the crank sensor, multiple coil packs, the wiring harness to the coil packs and fuel injectors, the ECU, the MAF, electrical relays, fuel pump, fuel filter, gas tank vent and associated plumbing, gas cap, plug wires, spark plugs, and pretty much every other electrical component associated with the engine. I have cleaned every ground connection on the car, sprayed contact cleaner on most of the connectors, and added an extra ground cable from the engine to the chassis. I have bypassed the factory wiring to the fuel pump and have it on a toggle switch. The car runs fine for about 15 to 20 minutes and then the engine goes off song. It feels like it is running on two cylinders or running out of gas. After it sits for 2 to 3 minutes in the pits it cranks and runs fine again. The current problem is that after 15 to 20 minutes on the track it goes off song and both coil packs have a small hole in the side wall with a silicone looking material leaking out. It does not crank and run fine in this condition. Has anyone had a similar problem and have a solution? I am trying to run this car in ITA.
Thanks,
Gregg