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What type of car? If it is older and uses vacuum for blend door operation, you may have a vacuum issue. Engine vacuum is low at higher speeds and vacuum is high at idle. If there is a check valve incorporated in the system it may be bad causing improper blend door operation. Also make sure the cooling fan comes on during AC operation and the condensor is not obstructed causing lack of airflow across the fins. You will get more airflow at higher speeds whichwill help in the cooling and make it colder while driving
The engines run very lean for fuel efficiency. Although a "cold start sequence" gives the impression of freezing temperatures, the operating range is much higher. The water temperature sensor (some have 2) may be staying too warm for the reset. You may need to change the sensor. Then the fuel mix will be richer and the engine will start.
Double check that all connections are secure, especially the console cable. Unplug and reconnect the console cable to verify.
Make sure the console cable is not pinched or damaged in any way.
Turn the power off, unplug the power cable and wait 60 seconds. Remove the motor cover. Wait until all red LED lights have gone off on the motor control board before proceeding. Next, verify that none of the wires connected to the lower board are loose or disconnected.
E13-Oxygen sensor voltage stays between 0.307 and 0.609 volts for 64 seconds. Engine was at normal operating temperature at a speed over 800 RPM. E44-Right oxygen sensor was lean for more than 50 seconds when engine was warm and at 800 RPM or greater. E52-PCM has lost primary battery power. E58-Pass Key fuel enable was not correct. F47-PCM has received bad data from IPC for 3 seconds while engine speed was 500 RPM or more for 3 seconds. F48-EGR open command was given during off idle operation. EGR opening should cause the mixture to be slightly richer because of the low oxygen content of exhaust gas. Vehicle speed was over 35 MPH and engine was warm. Good luck and hope this helps, keep me posted be glad to answer any questions you may have.