Fix one thing , break another - P1875

[fixkick]

your car has 2 VSS sensors, unlike modern cars and the cluster is 100% computer logic, and only has a VSS on the transmission tail (somewheres)
no, yours has cave man speedo VSS2, that is 100% mechanical.

The ECU sees them both, the VSS1 and VSS2,
yours VSS1 is wrong, wrong at VSS1 rear of you 4AT tranny the rear of said tranny is hard gear locked to the rear axle. and that can not be change.
only the VSS1 signal above must be changed some way, (analog way or digital way)

what you did not do is change and cure them both.
also you 4SP trans box is now shifting 13% late but I sure you did not notice that nor would I.