How do you test a crankshaft position sensor on a Harley Davidson?
How to Test a Harley Crank Position Sensor
- Turn the key in the ignition to the “Off” position. Turn the “Run/Stop” switch to “Run.” Push and hold the odometer “Reset” button. Hold the “Reset” button and do not release it yet.
- Turn the key to “Ignition,” but don’t start the engine. Release the odometer “Reset” button.
What does a crank position sensor on a Harley Davidson do?
A Harley-Davidson motorcycle engine may sputter and hesitate when a crank position sensor (CKP) starts to fail. The CKP sends data to the motorcycle computer data center about the position and speed of the crankshaft, the ignition and fuel injection.
How do you check crankshaft position on a Harley Davidson?
If your voltmeter comes with needle probes, back probe the wires at the sensor connector. If this is not possible, unplug the sensor electrical connector and plug the two halves to a test connector or a couple of jumper wires. Then plug back the connector. Set your digital multimeter to AC milivolts range and have a helper crank the engine.
How do I check the crankshaft position sensor?
If this is not possible, unplug the sensor electrical connector and plug the two halves to a test connector or a couple of jumper wires. Then plug back the connector. Set your digital multimeter to AC milivolts range and have a helper crank the engine. A typical sensor will have an output above 200 mV.
Where is the CKP sensor on a Harley Davidson?
Look for the CKP sensor at the front or side of the engine (see Resources). It is usually held in place by a single bolt. Lift the front of your vehicle using a floor jack and support it on two jack stands.
What are the symptoms of a bad crank shaft sensor on a Harley?
Another symptom commonly associated with a problematic crankshaft position sensor is intermittent stalling . If the crankshaft position sensor or its wiring have any issues, it can cause the crankshaft signal to be cut off while the engine is running, which can cause the engine to stall. This is usually a sign of a wiring problem.
How do I check a crankshaft position sensor?
Check the crankshaft sensor for an out-of-range or irregular signal by connecting the computer scanner to the electrical plug on the sensor. Place the scanner in the right mode by inserting the year, make and engine size into the computer. Rotate the knob down to “Crankshaft sensor.”.
What is a bad crank sensor?
A bad crank position sensor can worsen the way the engine idles, or the acceleration behaviour. If the engine is revved up with a bad or faulty sensor, it may cause misfiring, motor vibration or backfires. Acceleration might be hesitant, and abnormal shaking during engine idle might occur.
Will a crank sensor keep the car from starting?
Faulty sensors can keep your engine from starting , but this is often engineered in as a safety measure. For instance, the crank angle sensor or crankshaft position sensor may be located near the transmission belt housing and come in contact with water, which would prevent it from working.