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Home >> Mazda >> 2004 >> RX-8 1.3 3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Engine Controls - Basic Diagnostic Procedures) >> Ignition Checks >> Except B2300, B3000, B4000 & Tribute >> Camshaft Position Sensor (Protege & Protege5)

Camshaft Position Sensor (Protege & Protege5)

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  1. Disconnect Camshaft Position (CMP) sensor connector. CMP sensor is located near front of valve cover. Using ohmmeter, measure resistance between CMP sensor connector terminals. Resistance should be 950-1250 ohms. If resistance reading is not as specified, replace CMP sensor.
  2. If sensor is okay, disconnect PCM harness connector and install 104-pin breakout box. See Figure . Check for open or short in following circuits:
    • Between CMP sensor harness connector terminal "A" and PCM harness connector terminal No. 85 (Blue wire).
    • Between CMP sensor harness connector terminal "B" and PCM harness connector terminal No. 86 (Green wire).

    Repair or replace wiring harness as necessary.

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