P0133 Diagnostic Trouble Code Discussion for March 2015
Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response
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| Help Request | Posted | |
| 2002 Hyundai Elantra GLS 2.0L MIL Lamp on VIN: KMHDN45D72 P0133: Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response. Po133 upstream oxygen sensor switch time too slow. A scope of pattern at 2000 rpm shows a switch time peak to peak rich of 1 second, too slow. Signal stays high(rich) for 1.3-1.4 seconds, and low(lean) for only .3-.4 seconds. A rich condition is not present an... |
March 24, 2015 |
