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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 421 (Engine Control System Self-Diagnostics - 3.8L) >> Diagnostic Tests >> DTC P1374: Crankshaft Position High-To-Low Resolution Frequency Correlation >> Conditions For Setting DTC

Conditions For Setting DTC

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Ratio of 18X reference pulses to CAM signal pulses received by PCM equals 36:1 and the ratio of 18X reference pulses to 3X reference pulses received by PCM does not equal 6:1 for up to 30 seconds.

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