Oil pressure control solenoid

Anyone ever replace a oil pressure control solenoid on a gm 3.5 engine? Just wondering if cat has to be dropped. Says so in service info. 2013 Malibu. The flat rate is not listed in alldata. Seen bad pcms. Code P06DC. It was hard digging up the part number. Lots of people think it is the oil pressure sensor or vvt solenoids but they are wrong. Thanks

Got this off gm service.....
Goes into a reduced engine power mode.

The engine oil pressure control solenoid is a two port solenoid valve used to control engine oil pressure inside the mechanical engine oil pump. The ECM controls the commanded states of the engine oil pressure control solenoid with the following ECM inputs. Engine SpeedEngine Oil Temperature (calculated from the Engine Coolant Temperature Sensor)Engine Oil PressureEngine Run Time With the engine oil pressure control solenoid commanded Off, engine oil pressure is higher. When commanded On engine oil pressure is lower. The purpose of this diagnostic is to isolate an electrical problem with the engine oil pressure control solenoid or wiring. When code is set : DTC  P06DA and P06DC are Type B DTCs.ECM commands the engine oil pressure control solenoid valve Off.ECM commands Reduced Engine Power.

Never seen this before, but it sounds very similar in operation to the Pentastar 3.6L system.

The reduced power thing is kinda ridiculous.

What is the purpose of varying the engine oil pressure?

Noah wrote: What is the purpose of varying the engine oil pressure?

Emissions. :silly: Less work the oil pump has to do, so you get some minuscule amount of fuel economy improvement.

:huh:

Noah wrote: :huh:

Don't you look at me like that. I didn't say the stupid thing makes any sense!