9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
I'm having issues with the front oxygen sensor in my 2004' 9-3. Readings from the ECU (via OBDII) reads steadily around 0V on the oxygen sensor signal so the Fuel Trim gets maxed out to compensate with more fuel. I suspect that the oxygen sensor is not faulty but might be incompatible with the...