If you know much about cars then you might have noticed something missing under the hood (bonnet?).... The distributor! It has been sent away by the power of the almighty computer. The computer sets the timing not the distributor. But even a computer needs some information to do its job. It needs to know "where is the crank position?". So enter the CPS. That is its job to do. But being made of.... whatever it is made of, it can get tired of being heated up really hot and then cooled down day after day, year after year (well mine seems to like it...). Anyway it is a little bit of electronics that can decide it doesn't like the heat of the kitchen so it wants out. OK call it thermal stress. But once it "cools off" it has a whole new outlook on life. OK call it intermittant. OK call it thermal intermittant. Oh my I have been up too long.... But keep in mind that the other thread ended up with a different problem, a relay module of some kind, so it is not definitely the CPS, just the symptom seems to fit. But it could be something else.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra