How do you test a crankshaft position sensor - Chevrolet 2002 Chevrolet Cavalier Z24

There is but you have the have a meter that will check ohms and hertz. They run about $300 for a cheap one.

Hi Willem, Code 18 is a Crankshaft position sensor/Camshaft position sensor............ P0018
Crankshaft Position Camshaft Position/Correlation (Bank 2 Sensor A)
Crankshaft Position Sensor car not starting coil spark

Camshaft Position Sensor P0340 Testing and Replacement HD

Crankshaft position sensor , possibly !
Crankshaft Position (CKP) Sensor
The crankshaft position (CKP) sensor is a three wire sensor based on the magneto resistive principle. A magneto resistive sensor uses two magnetic pickups between a permanent magnet. As an element such as a reluctor wheel passes the magnets the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The PCM supplies a 12-volt, low reference, and signal circuit to the CKP sensor. The sensor returns a digital ON/OFF pulse 24 times per crankshaft revolution.
There are a lot of videos on youtube on testing crankshaft position sensors an Cam sensors !
There

Definition of Diagnostic Trouble Code P1345 Audi: Ignition Coil Power Output Stage 3 Short to Ground BMW: Misfire Cylinder 2 with Fuel Cut-Off Buick: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Cadillac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Chevrolet: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Ford: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) GMC: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Isuzu: Crankshaft Position - Camshaft Position Correlation Kia: No SGC Signal (1.6L) Lexus: Variable Valve Timing / CMP Sensor Range / Performance Lincoln: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Mazda: Cylinder Discrimination Signal (from CMP sensor) Mercury: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Oldsmobile: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Pontiac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Saturn: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Toyota: Variable Valve Timing / CMP Sensor Range / Performance Volkswagen: Ignition Coil Power Output Stage 3 Short to Ground

Hey Bob how's it going ? What engine does it have 2.2 3.5 L ? An how did you test for current ? This is a AC voltage .
The crankshaft position (CKP) sensor is a permanent magnet generator, known as a variable reluctance sensor. The CKP sensor produces an AC voltage of different amplitude and frequency. The frequency depends on the velocity of the crankshaft. The AC voltage output depends on the crankshaft position and the battery voltage. The CKP sensor works in conjunction with a 7X reluctor wheel attached to the crankshaft. The CKP sensor produces seven pulses for each revolution of the crankshaft. The pulse from the 10-degree notch is known as the sync pulse. The sync pulse is used to synchronize the coil firing sequence with the crankshaft position. The CKP sensor is used for ignition timing, the fuel injector timing, misfire diagnostics and tachometer display. The CKP sensor is connected to the ECM by a signal circuit and a low reference circuit.
The best way to test is with a lab scope !
Crankshaft position sensor

P0315 - Crankshaft Position System Variation Not Learned
P0335 - Magnetic Crankshaft Position Sensor Electrical Error China OBD2 car diagnostic tools wholesale on CareUCar

For testing crank sensor,check the help link below:---How to test Crankshaft Position Sensor? http://fordrepairhelp.blogspot.in/2012/03/how-to-test-ford-focus-crankshaft.html
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• How to test Crankshaft Position CKP Sensor?

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Crankshaft Position Sensor Operation?

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Replace Camshaft position sensor and Crankshaft Position Sensor? http://technoanswers.blogspot.in/2012/06/2005-dodge-durango-replace-camshaft.html
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GMC Crankshaft Position (CKP) Sensor Replacing? http://schematicsdiagram.blogspot.com/2011/12/gmc-crankshaft-position-ckp-sensor.html

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These details will help.
Thanks.

Hi, at the front of the crankshaft. if its near time for the timing belt, you want to replace it along with any pullies, tensioner and water pump


The crankshaft position sensor is mounted on the engine near the crankshaft.

Operation

The crankshaft position sensor is a Hall-Effect sensor that senses the crank angle (piston position) of each cylinder and converts it into a pulse signal. The signal from the sensor is relayed to the ECM to indicate engine rpm and the position of the crankshaft.

Removal & Installation

1. Disconnect the negative battery cable.
2. Disconnect the connector from the sensor.
3. Remove the bolt that retains the sensor in place.
4. Remove the sensor from its mounting. To install:
   
   1. Installation is the reverse of the removal procedure.
   2. Clearance between the sensor and the sensor wheel should be 0.020-0.059 inch. 2002-2005
      
      1. Properly connect the scan tool.
      2. Start the engine and allow it to idle.
      3. Be sure the idle position switch is ON.
      4. Specifications are as follows:
         
         Temperature - 4°F, test specification 1500-1700 RPM Temperature 32°F, test specification 1350-1550 RPM Temperature 68°F, test specification 1200-1400 RPMTemperature 104°F, test specification 1000-1200 RPM Temperature 176°F, test specification 650-850 RPM

Hello it is not easy to use a computer with a 4 year old constantly trying to get your attention.Anyhow i said disconnect your battery wait 5 minutes to reboot the computer i have gone through your situation a dozen times if it doesn't start it should trip your check engine light and you will be able to scan and retrieve keep me posted.John