I replaced the upshift delay valve. It has I think a green line and black line going to it. The green line is the vacuum, and it connects to the transmission. The black line is electrical.

Somewhere, someone has posted a picture of this (maybe it was Arthur Dalton). He's the Lone Ranger when it comes to these fault code diagnostic issues.

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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".