ECM-P168900 Oil Pressure Control Solenoid Circuit
Hi all,
I'm new to Volvo, be gentle!! . I brought a used V70 2012 with 150K on it. Thinking this was fine and everything else seems to be good. Took it in to Volvo as it needed a recall that was outstanding from last year. They did the cam belt as I didn't know the age and oil change and software updates. On driving it home it started with oil pressure yellow light. Took it back to them and they fitted an control valve. I would not normally go the main dealer but initially I saw value in getting it up to date. Also I had a good experience with them and seems to be all good. I am sure they didn't contribute to this but its becoming a head scratcher and big time. I didnt see it in the 4 weeks before the service but that could be a coincidence. Since then its gone from bad to worse now going as well to limp mode. Volvo basically said they don't know what to do now and cant help. I got a DICE and pulled out the codes. The diag shows as "Change in the oil pressure does not correspond to the expected pressure upon request for electric piston cooling valve opening." Based on the information what do you guys think. Is anything know about this type of problem. There is no rough idle and the car drives great. In fact its better than I could expect. Where should I go first? Total distance 247168 km Total distance 153615.91 miles MECU supply voltage 13.75 V Outdoor temperature 17 °C Calculated load value 80 % Engine coolant temperature 89 °C Intake manifold absolute pressure sensor 1820 hPa Engine Speed 1567.5 rpm Vehicle speed (via CAN) 50 km/h Intake air temperature (MAF) 21 °C Air Flow Rate from Mass Air Flow Sensor 225.18 kg/h Absolute Throttle Position 89.02 % Time since engine start 382 s Fuel pressure 1459500 hPa EGR valve, commanded position 16.08 % EGR adaption 7.81 % Temperature Sensor, Particulate Filter 245.4 °C Barometric Pressure 1010 hPa Control module voltage 14.08 V Outdoor temperature 17 °C Accelerator pedal position (via CAN) 21.18 % Accelerator pedal position, PWM 20.39 % |
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Have they even checked the volvo service bulletins or sent off a technical report to the volvo technical department .. if all their tests are showing the right results ?? |
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Changed the piston lubrication solenoid (31401504) and again the same error ecm p168900, does anyone know what to do next?
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You will require technical information for the solenoid on how it is actuated ect so you can check wiring ect and what it takes to set the fault code. Without that you will struggle if there is nothing obvious. You can try and trace the wiring back as far as you are able to.
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