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Home >> Toyota >> 2000 >> 4Runner Base, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Self-Diagnostics - 4-Cylinder >> Diagnostic Tests >> DTC P0171 Or P0172: System Too Lean/Rich (Except CALIF. Emissions) >> Diagnostic Aids

Diagnostic Aids

Using scan tool, read freeze frame data. Freeze frame records engine conditions when malfunction is detected.

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