When you say "engine totalled", do you mean that they rebuilt your old engine, or that they dropped in a new one?

Your engine wiring harness should be fine. They were fixed back in 1995.

Misfires are usually attributed to bad coil wire connectors / resistor boots.

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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".