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1

Testing Ford Ignition

Scope-testing Ford TFI-4 ignition system signals.

PIP/SPOUT interaction, failures, and LDR DIS basics.

Ford DIS signals, waveforms, and failure diagnosis.

Four-cylinder DIS signals, DPI diagnosis, EDIS transition.

Scope coil currents and cam/crank synchronization setup.

Cam/crank sync case studies and scope strategy.

2

Failure Identification

Failure case studies using action-reaction scope diagnostics.

Scoping reference/EST and injector faults precisely.

Lab scope case studies: intermittent wiring, power, sensors.

Ignition waveform case studies: misfire, stall diagnostics.

Real-world intermittent drivability diagnostics using scope strategy.

Waveform case studies: ignition, injection, sensor failures.

Real-world scope-based ignition and sensor diagnostics.

Case studies and core lab scope philosophy.

Testing Ford Ignition

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