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Home >> Subaru >> 2021 >> Crosstrek Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Control System (2.5L) (Diagnostics) (4 Of 4)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P219C: Cylinder 1 Air-Fuel Ratio Imbalance >> General Description >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

Judge as NG when the following conditions are established.

Judgment value 

JUDGMENT VALUE SPECIFICATIONS

Malfunction Criteria Threshold Value
Imbalance value n for imbalance cylinder More than 0.2
Or,
Less than -0.5
Imbalance value n = i correction value n - average value (i correction value n of other three cylinders)
i compensation value n = Compensation value for each cylinder
Imbalance cylinder: Maximum value of cylinder (absolute value (imbalance value n))
(n: any of cylinder numbers (#1, #2, #3, #4))
 

Time needed for diagnosis:  300time(s)

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.