My buddy had a leaking oil cooler on his 3.6. He replaced the oil cooler and the leak got worse and he started throwing codes. I told him he probably pinched the wires to the knock sensor, and I ordered the sensor and wire. I helped him with the install this weekend and the fault was exactly as I had predicted (lucky guess). The repair went off perfectly and he test drove it last night, thanking me for no check engine light and didn't see any oil leak. I checked, there was no leak. I just poured a bit of oil under his Jeep exactly in the spot it was dripping. Can't wait to see his face.