LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2006 >> IS 250 RWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Control System (2GR-FSE)) >> SFI System >> DTC P0171 System Too Lean (Bank 1); DTC P0172 System Too Rich (Bank 1); DTC P0174 System Too Lean (Bank 2); DTC P0175 System Too Rich (Bank 2) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2006 Lexus IS 350. 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 1 or 2 is met: -
1. Average between short-term fuel trim and long-term fuel trim 35 % or more (varies with ECT)
2. Average between short-term fuel trim and long-term fuel trim -30 % or less (varies with ECT)
scientia non olet · About LEMON Manuals