LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2013 >> Tribeca >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code Detecting Criteria >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0301 Cylinder 1 Misfire Detected >> Diagnostic Method >> 120° Interval Difference Method
April 5, 2026: LEMON Manuals is launched! Read the announcement.

120° Interval Difference Method

120° INTERVAL DIFFERENCE METHOD

Diagnostic value domg 120 = (omg 1 - omg 0) - (omg 7 - omg 1)/6
Judge as a misfire in the following cases.
  • domg 120 > judgment value of positive side
  • domg 121 ≤ judgment value of negative side

(Diagnostic value before 120° CA)
Fig 1: Misfire Judgement Graph (180° Interval Difference Method)
G07925993Courtesy of SUBARU OF AMERICA, INC.
scientia non olet · About LEMON Manuals