Galant V6-3.0L SOHC (2003)
Example 1
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Cause of problem Sensor interface malfunction.
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Wave pattern characteristics
Rectangular wave pattern is output even when the engine is not started.
Example 2
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Cause of problem Damaged rectifier or vortex generation column.
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Wave pattern characteristics
Unstable wave pattern with non-uniform frequency. An ignition leak will distort the wave pattern temporarily, even if the volume air flow sensor is
normal.