My Sable has a strange issue, other than not starting the speedometer jumps to 90 mph and the odometer turns as if the car is speeding on the highway. It may turn over but only last a few seconds. Prior to this it would stall at lights or if I took my foot of the gas, but it would start backup I thought it was a glitch in the security system. Now after sitting for a week the battery is completely drained so before I tow it to a mechanic can anyone give me an idea of what could be the issue.

Thank you

I received these error codes
P1237 - Fuel Pump Secondary Circuit Malfunction
P0402 - Exhaust Gas Recirculation Flow Excessive Detected
P1400 - DPFE Sensor Low Voltage
P1401 - DPFE Sensor High Voltage
P1409 - EGR Vacuum Regulator Solenoid Circuit Malfunction