I didn't ask, so I don't know if he did or not.

Fwiw, the fuel filter, fuel pressure regulator, and fuel pumps were replaced at 127,000 miles. I was chasing another problem by a different mechanic, and the problem all along was a bad spark plug wire.

I think my car really needs a priest or a rabbi.

What's strange is - why would the rhythmic, fluctuating idle only occur after the car has warmed up? I think this is the key to the problem. The car must be completely warmed up until it starts happening.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".