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2018
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WRX Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Control System (Diagnostics) (2 Of 4) (Except For STI)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P0301: Cylinder 1 Misfire Detected
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Diagnostic Method
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180° Interval Difference Method
180° Interval Difference Method
Diagnostic value
180 degree interval difference = (A - B) - (B - C)
Judge as a misfire in the following cases.
180 degree interval difference = Judgment value of positive side
180 degree interval difference = Judgment value of negative side
(Diagnostic value before 180° CA)
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