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jasmin_werner10
Ford F Hybrid Mixture Error
4 comment(s)
jasmin_werner10 (Author)
The error code is P0172, indicating a rich mixture. Does that still point to the oxygen sensor, or should I suspect the injection valve more strongly?
romyflame1
With a confirmed P0172 code, and considering the symptoms, it's still wise to be cautious. While the oxygen sensor remains a suspect, especially with the mileage, a faulty injector is definitely high on the list. Considering the catalytic converter is likely to be damaged if the mixture remains off for a longer time, I suggest visiting a workshop to avoid consequential damage.
jasmin_werner10 (Author)
I visited a workshop. The diagnosis confirmed a defective injector. The repair, including parts and labor, was 515€. The engine now runs smoothly.
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romyflame1
That sounds concerning. A rich mixture could indeed be a problem. Before jumping to the injector, have you considered the oxygen sensor? A faulty O2 sensor can wreak havoc on the air-fuel ratio. Can you read out the error code?