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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0133: O2 Sensor Circuit Slow Response (Bank 1/Sensor 1) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Check HO2S Signal Amplitude
  1. Leak in intake or exhaust system.
  2. Poor connection or damaged harness
  3. HO2S contamination
Enable Conditions
Threshold Value
  • Integral (Lambda signal amplitude measured/Lambda signal amplitude of a slow sensor) > 1.0
Diagnostic Time
  • 25 lambda controller cycle
Mil On Condition
  • 2 Driving Cycles
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