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Home >> Mazda >> 2007 >> 6 Mazdaspeed >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Control System L3 With TC) >> Engine Control System Operation Inspection >> Input Signal System Investigation Procedure >> Finding unusual signals
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Finding unusual signals

While referring to 01-02B-7 ON-BOARD DIAGNOSTIC TEST [L3 WITH TC], use the PID/DATA monitor and record function to inspect the input signal system relating to the problem.

  1. Start the engine and idle the vehicle. You can assume that any signals that are out of specification by a wide margin are unusual.
  2. When recreating the problem, any sudden change in the monitor input signals that is not consciously created by the driver can be determined as unusual.