FixVault
Home
›
Saturn
›
2003
›
Ion 1 Automatic
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Self-Diagnostics
›
Diagnostic Tests
›
DTC P1133: Ho2S Insufficient Switching - Sensor 1
›
Conditions For Setting DTC
Conditions For Setting DTC
The ECM detects that the HO2S 1 Lean/Rich or Rich/Lean transitions are less than a calibrated value.