I've looked for a engine temperature sender gauge switch -none for yours-its picking up the engine temperature from the coolant temperature sensor-also be advised the thermostat controls the engine temperature, the CTS only reads it for other purposes
Start problems might want to check and test the fuel pump relay and fuel pump/oil pressure sending unit
IACV: Idle Air Control Valve-try cleaning it out and see what happens
Monday, February 15th, 2010 AT 3:12 PM