LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2019 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (2 Of 6) (Except HEV) >> DTC P0133: O2 Sensor Circuit Slow Response (Bank 1/Sensor 1) >> DTC Information >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Response rate monitor
  1. Poor connection
  2. Leak or clog in intake air system
  3. Injector
  4. Fuel pressure
  5. HO2S (S1)
Enable Conditions
  • Engine load greater than 25% and less than 65%
  • Fuel feed back control condition is active
  • Engine speed and Engine speed greater than 1800rpm and less than 2800rpm
Threshold Value
  • Difference between real signal period and modeled signal period is greater than 1.75s
Diagnostic Time
  • 20 signal cycles
MIL ON Condition
  • 3 driving cycles

* S1: upstream oxygen sensor/S2: downstream oxygen sensor

scientia non olet · About LEMON Manuals