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cap, rotor, wires only a few months old. propblem occurs dry & mostly when it's hot or run around for a little while. wires look like all old volvo wire with cracked sleeving (would be nice if I knew some specific DC voltages to check while manipulating specific wires (could temp sensor voltage to ECU cause my problem??)). Fuel pressure regulator recently replaced & I think that always fails with excessive fuel pressure to motor resulting in fuel in oil (also should run when you step on it also, couldn't be intermittant)). Injectors aren't leaking & haven't found a vacuume leak while spraying carb cleaner around suspect areas.

will replace cap/rotor again & spray water on wires & check injector connections. Then install junckyard ECU & do your coil check (& get junkyard coil). I don't know what to do with ignition switch. wouldn't think Air bypass nor TPS could cause severity of my problem (when it gets bad, it can shut the engine down) but I'll replace the TPS (junkyard). can't tell where it misses but guessing all cylinders.

The coil is really sounding suspect as is the pick-up in the distributor. Thanks for your help...