James Noh

I just expire my warranty, so, my mileage is 160k. Couple month ago, I got engine light pop up. So, I checked OBD2 reader, and I got P06DA. The oil pump circuit open. It is not always high. Then I started, it is 70, then almost 210, the temperature back to 40.In this situation, I deleted code, but still OBD2 read P06DA. I read bunch of article and start fix my oil pump solenoid vale and PVC pump. Then still got the error code. So, I checked oil pump wire connector, I found some problems. The oil buildup around connector like the image, and inside of the connector have some oil. Also, the connector can move easily left or right when I moving it. (I don't know, but I think it has to be thigh) I just clean the connector with break cleaner and plug back in. Unfortunately, still have code in the OBD2. In this case, should I have to replace the oil pump? (The engine sound pretty normal, I got problem, when the weather was very cold, the engine was very unstable after warm up back to normal) If I have to, should I take down the oil pan? Because, I think, just unplug 2 bottom screws in the front engine cover, then I can access the oil pump with out 5-6 hour taking down oil pan. Please help me some idea for solving this issues.