LEMON Manuals: Even more car manuals for everyone: 1960-2025

Home >> Saturn >> 2003 >> Ion 1 Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0171: Fuel Trim System Lean >> Conditions For Setting DTC

April 5, 2026: LEMON Manuals is launched! Read the announcement.

Conditions For Setting DTC

The fuel trim index is at more than 20 percent.

scientia non olet · About LEMON Manuals