Diamante Sedan V6-2972cc 3.0L DOHC (1993)
Air Flow Meter/Sensor: Oscilloscope Patterns and Waveforms
Normal Wave Forms
Abnormal Waveform
1. Run engine at idle speed.
2. Engine coolant temperature should be at: 85 - 95°C (185 - 205°F), with no electrical accessory loads on.
3. Connect the input probe of the oscilloscope, to the pickup point shown in the circuit diagram, and check the wave form.
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If scope pattern is not as depicted in image, continue with the rest of the component tests before replacing the assembly.
NOTE: Pattern should change as engine speed changes.
