I don't know what happens if you 'unplug it', never tried that. All I know is that the computer goes nuts and the engine runs terrible - that could be a combination of the ECU and the VVT trying to control timing.
If you remove the VVT and the cam sprocket, replaced by the sprocket from the 98, that 'might' work. I don't know if the cam lobes are machined differently between the years.
Finding an automotive engineer or technical mechanic is in the works.
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Keeping it running is better than buying new
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