Hello my name is Dave.
That code indicates no communication with the ECU, considering what you have had to do to try and get this car straightened out it will most likely take a lot of troubleshooting to track down the issue. The first question that comes to my mind is if the wiring harness is the correct one. But lets assume it is the correct one for the moment, first thing then to check is all the fuses and relays. I am going to attach the diagrams for the power-train so you can compare yours to it. I would start at the ECU and compare the wire colors to the ones in the diagram, if any are different then the harness is incorrect. This will also give you the information you would need to check that each sensor has the correct wires going to them. The other thing I would check very closely are all the ground wires as they are the easiest ones to overlook when changing a harness. Please keep us up to date on your progress and thank you for using 2CarPros!
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Thursday, November 21st, 2019 AT 4:09 AM