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Home >> Nissan-Datsun >> 1993 >> Sentra SE-R, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks >> DISTRIBUTORLESS Ignition (EI) System >> CKP Sensor
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CKP Sensor

  1. If a fault is present in CKP sensor, Code 11 may be set in ECM memory. If Code 11 is set, perform appropriate CODE 11 (CKP SENSOR) in TESTS W/CODES article.
  2. To test CKP sensor, remove distributor. Leave wiring harness connected. Using a voltmeter, connect negative lead to ground and alternately connect positive lead to terminal "A" (120-degree signal) and terminal "B" (1-degree signal). See Figure.
  3. Measure voltages while rotating distributor by hand. Voltage should fluctuate 0-5 volts. If either voltage signal does not fluctuate 0-5 volts, check harness for short or open circuit. If no problems are found, replace CKP sensor.
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