I've just replaced the oil pan gasket, quite an endeavor. My car sat for around 6 months. When I drove it recently, after shutting the engine off, I had a leak that I believed was from the gasket. Everything else was fine with the car. After replacing the gasket, I now have the problem that the dashboard displays both low oil and low coolant. I've rechecked that the plug for the oil level sensor is plugged in properly. I did not replace the oil level sensor. I did nothing to the radiator. Are these two sensors in anyway connected together somewhere? Their's plenty of coolant, and plenty of oil.