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Home >> Mercury >> 1988 >> Tracer 2D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> MPFI System >> Quick Test >> Continuous Monitor (Wiggle) Test >> Systematic Use

Systematic Use

  1. Visually inspect sensor, switch or solenoid affected. Enter CONTINUOUS SELF-TEST and lightly tap sensor, switch or solenoid.
  2. Push/pull on sensor, switch or solenoid connector while not disconnecting. Test and wiggle (shake) harness vigorously, working from sensor, switch or solenoid toward dash panel and from the dash panel to ECA in small sections.
  3. If volt/ohmmeter does not have a positive indication of an intermittent fault, carefully disconnect sensor, switch or solenoid from harness. Remove terminals from connector.
  4. Inspect terminals at both ends for corrosion, bad crimps and improperly seated terminals. Reconnect after inspection and unplug processor from harness.
  5. Inspect terminals for corrosion, bad crimps and improperly seated terminals. If volt/ohmmeter does not indicate an intermittent fault plug in connector and erase CONTINUOUS SELF-TEST codes. See CONTINUOUS SELF-TEST for clearing codes.
Fig 1: Fault Code Chart, Vehicles Built After 11/2/87 (1 of 2)
G94529
Fig 2: Fault Code Chart, Vehicles Built After 11/2/87 (2 of 2)
G94530
Fig 3: Fault Code Chart, MIL Equipped Vehicles Built Before 11/2/87
G94531
Fig 4: Fault Code Chart, Non-MIL Equipped Vehicles
G94532
Fig 5: Self-Diagnostic Connector
G50I15808
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