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Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
Both of following conditions 1 and 2 met -
1. Averaged engine load value ratio Less than 0.85, or more than 1.301 (varies with estimated engine load)
2. Averaged air fuel ratio Less than -20%, or more than 20%