Hi,
about 2 weeks after getting my turbo back exhaust done my engine light came on. The mechanic said it was the O2 sensor but told me to get the auto electrician to check the wiring before changing it. A couple of the guys there drive foresters and say they have experienced more problems with the witing than the sensors themselves.
The question is that my next mod will be a flash at pulse racing, is it worth changing the sensor prior to getting the tune????