Does a map sensor control idle?
your car surges and dies out: a faulty map sensor can cause engine rpm to fluctuate or surge, primarily at idle or low speeds. if you turn on the air conditioning or use the power steering when the happens, the engine can die out. it will usually restart, but this condition will worsen and can be dangerous.
Should my camshaft position sensor have oil on it?
It’s a normal thing for a camshaft position sensor to have oil on it. The oil is necessary for its functionality. However, the sensor housing has to be in good shape to work perfectly. A crack in the sensor housing can result in oil contamination which could make the sensor fail.
Is it easy to replace camshaft position sensor?
It may be easiest to remove and replace the camshaft sensor from under your vehicle, but it can also be done from the top by removing the air filter housing.