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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 757 (On-Board Diagnostic [Engine Control System]) >> DTC P0172: Fuel Trim System Too Rich >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC P0172: Diagnostic Procedure Chart (Steps 1-9)
G00975230Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC P0172: Diagnostic Procedure Chart (Steps 10-12)
G00975231Courtesy of MAZDA MOTORS CORP.
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