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It sounds to me as though your car was imported from a country which uses KM. It may be that it's had it's instrument binnacle replaced at some point in the past with an import unit. Typically it's fairly easy to convert a KM speedo to MPH by simply removing the perspex and needle and sticking a replacement facia marked up with MPH over the speedo. It's ...


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The same thing actually happened again a year later. It was the same situation where the alternator wasn't putting out enough voltage to charge the battery. I took it to a mechanic and they noticed that the wire(s) connected to the alternator were burnt. After replacing the wires, everything worked like normal again. Putting two and two together, both ...


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maybe you should consider replacing the battery / is the general case when the battery light lights ups


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Yes. The rear sensor is used to calculate the difference in exhaust gas quality before and after the cat. In the simplest terms the ECM compares the voltages of the front and rear O2 sensors and if they're too similar, you get the P0420 code. Now, because the front sensor is giving faulty data to the ECM (P0133), the formula the ECM uses to calculate cat ...


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Yes, the P0420 catalytic efficiency can be caused by a bad O2 sensor. But a P0133 refers to the front O2 sensor so things are a little more complicated than when people refer to a bad rear O2 sensor. Your front O2 sensor is probably bad (P0133) and your cat and/or your rear O2 sensor may be bad (P0420). One cheap test for the cat is using a laser ...



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