DTC P0133:00, P0153:00: Notes
WARNING: This page is about a different variant/trim than selected.
| DTC P0133:00 |
P0133:00: A/F sensor (RH) circuit slow response |
| DTC P0153:00 |
P0153:00: A/F sensor (LH) circuit slow response |
| DETECTION CONDITION |
- P0133:00 indicates slow response of A/F sensor (RH) circuit
- P0153:00 indicates slow response of A/F sensor (LH) circuit
- The PCM commands an air/fuel ratio that changes the waveform to a square shape. The PCM calculates the length of the resulting signal from the A/F sensor. The test fails when the length of the signal is less than a calibrated limit.
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| POSSIBLE CAUSE |
- Contaminated A/F sensor
- Incorrect fueling
- MAF sensor malfunction
- Exhaust leaks
- Open or short circuit between PCM and A/F sensor
- Inlet air leaks
- Deteriorating A/F sensor
- A/F sensor heater malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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