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Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL MALFUNCTION THRESHOLDS

Purge-cut Executing
Either of following conditions (a) or (b) is met -
(a) Average between short-term fuel trim and long-term fuel trim 35% or more (varies with ECT)
(b) Average between short-term fuel trim and long-term fuel trim -35% or less (varies with ECT)
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