Hi there,
These codes refer to the engine coolant temp sensor, this is not the same as the temp gauge sender, This sensor is one of the input signals that the ECU requires to run the engine management system, with faulty inputs it may be causing the system to shut down, I would get the sensor changed and do a continuity test from the sensor back to the ECU to check for any hard wiring problems as well, start here.
Mark (mhpautos)
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Tuesday, March 2nd, 2010 AT 6:48 PM