Before someone else asks, I'll ask. This doesn't just happen when the engine is cold, does it? If so, it's a design feature to warm up the catalytic converters faster. Obviously, if it happens when the engine is fullly warm, there's a problem, and I'm not competent to advise about that, though I would suspect the same circuitry which deliberately delays the 1-2 shift -- perhaps engine temp sensor malfunctioning and giving a "cold engine" signal?

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Steve
'93 400E