I got a code: DTC P0520
(Engine Oil Pressure Sensor/Switch Circuit Malfunction) in the ODB. I checked oil and was about 1.5 quarts low after 2500 miles on an oil change performed at the dealership. They placed 5w30 oil in it though the manual clearly states (as well as the oil cap) 5w20 should be used in the hemi. I added oil and have driven it 5+ miles three times but the light remains with just this same code.
A few questions as I ponder and troubleshoot:
1 - Would the low oil level and/or (both) oil weight have a bearing on this sensor being tripped?
2 - Will the sensor go off with filling the oil to correct levels or do I need to flush and fill with the correct weight.
3 - Why in the heck would a Jeep dealership garage put the incorrect weight in my vehicle? (so they could charge me to replace a sensor? not funny!!)
4 - If I pull the battery negative for a minute or so, will the ODB light go off and only re-trip if an issue remains or do I have to replace the sensor?
Any words of wisdom are greatly appreciated.