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Code 8 - TDC Crank Sensor

  1. Turn ignition off. Remove hazard fuse at battery positive terminal for 10 seconds to reset ECU. Start engine and observe "CHECK ENGINE" light. If light is off, problem is intermittent. Test drive vehicle and check again.
  2. If "CHECK ENGINE" light is on, turn ignition off. Disconnect sensor connector at distributor. Measure resistance between White/Blue and Orange/Blue wires. If resistance is not 350-550 ohms, replace distributor assembly. If resistance is within specification, individually check for continuity between ground and White/Blue wire and then Orange/Blue wire. If continuity exists, sensor is shorted to ground. Replace distributor assembly.
  3. Reconnect sensor connector. Connect ECU test harness to main wiring harness side only. Measure resistance between ECU harness terminals C3 and C4. See Figure . If resistance is not 350-550 ohms, repair open or short in Orange/Blue and/or White/Blue wire. If resistance is within specification, substitute a known good ECU. If condition is rectified, replace original ECU.
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