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U4018 Diagnostic Trouble Code Discussion for December 2022

Invalid data received from ECM/PCM


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Trouble Ticket Help Requests for DTC U4018
Help Request Posted
2014 Dodge Dart Aero 1.4L Poor Idle Quality VIN: 1C3CDFDH6E
U4018: Wrong Data PCM. On start up runs good, but continues to randomly go into Limp Mode. Before update, idled high for about 30 seconds then went into limp mode,after update, much better.
December 13, 2022