Took me a while to find where the ECT was located (under the intake manifold). The car did exactly what you said when disconnecting the harness connector, but after replacing the sensor, I accidentally broke the harness protective covering which probably led me to have an engine code P1289.
Hello everyone. I’m pretty new to this forum. Before posting this thread, I have tried looking everywhere on this forum and others about this problem but no luck.
Anyways…
About a month ago, I went to go start up my 2014 Mustang V6 so I can go on a cruise and let it warm up for a while and...