You may need a compression test and leak down test to diagnose the problem. So most likely there's a leak at the cylinder wall, rings, valve or head gasket. The white smoke is more related to coolant or oil leaks (bluish smoke) into the combustion chamber. Remove the sensor and inspect it for signs of physical damage or contamination.Īnswer: The CAM tells the computer the position of the camshaft, and works in sync with the crankshaft sensor, so the computer knows when to fire an injector (depending on model) and to fire spark.If the voltage signal is lower than the specification, or no signal comes out of the sensor, most likely the sensor is bad. Compare your reading to the specification in your vehicle repair manual. Touch the signal wire with the red probe from your meter and the ground wire with the black probe.Compare your reading to the specification in your manual. Touch the black probe on your meter to ground (a metal bracket, bolt, or metal surface on the engine itself) and the other probe to the power wire.Have an assistant turn the ignition key on, but don't start the engine.Once you identify the power, ground, and signal wires using your vehicle repair manual, test the sensor's circuit by setting your multimeter to "DC volts.".If there's no signal, you have a bad CMP sensor. In most cases, you'll see a fluctuating signal between 0.3 volts and 1 volt. #2001 DODGE NEON DRIVE SHAFT SENSOR LOCATION MANUAL#Check your meter display and compare your reading to your manual specifications.
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