1996 Pontiac Sunfire Non working Speedometer

Transmission problem
1996 Pontiac Sunfire 4 cyl Automatic 230000 miles

I recently had the transmission in my 96 sunfire changed, but now the check engine light is on, it revs very high before shifting and the speedometer doesn't work. Any suggestions would be greatly appreciated.



Within the month of having this car I've had the alternator replaced. It also has a brand new battery, starter, water pump and O2 sensor.