Here are the symtoms:
-Speedometer went from bouncing all over the place to dead
-odometer is dead
-gas guage varies 1/8 of a tank when turning/stopping/accelerating
-check engin light is on
-under acceleration if I let off the gas the car "jerks" instead of tapering off

Here are the faults that were logged:
5 Faults Found:
17539 - Oxygen (Lambda) Sensor: B2 S1: Internal Resistance too High
P1131 - 35-10 - - - Intermittent
16502 - Engine Coolant Temp. Sensor (G62): Signal too High
P0118 - 35-10 - - - Intermittent
16885 - Vehicle Speed Sensor: Implausible Signal
P0501 - 35-00 - -
17521 - Oxygen (Lambda) Sensor: B1 S1: Internal Resistance too High
P1113 - 35-10 - - - Intermittent
16891 - Idle Control System RPM Higher than Expected.
P0507 - 35-10 - - - Intermittent

I think it is the vehicle speed sensor, but it may be other things as well. I have some other logs of some runs we did if you think they might help determine what is wrong. I don't know, any help would be appreciated.

AC

never paid much attention to it.

Two bad O2 Sensors (Common)
One bad Coolant Temp Sensor (Very Common)

The other two could be related to oneanother, and possible a vacuum leak.

You may have a gremlin in your harness, or at the ECU connectors.