Re-reading your post, I would make dead certain the computer you swapped in is compatible with your car. Try it with the old computer if it's still functional.
'95 Contour GL, Zetec/ATX
Repairs: * wheel bearings * sway bar stop * CV joint * alternator * shift interlock * heater tube * VSS * tensioner * ingition coil * wire harnesses * ball joint *
Why do I still love it?
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