I only wonder about the o2 sensor due to past experience with non oem parts (ie, walker). I know most older toyotas have issues with the bosch parts and only work with denso for the most part, but the opposite seems to be the case with subarus (makes sense with bosch being the oem I suppose). maf has been checked, knock sensor is next, probably take a look at that tomorrow during the oil change.
90 Legacy L AWD 5mt
Formerly of the USMB but moved from an RX to a Legacy
Checked the knock sensor, cracked. Replaced with an OEM sensor (updated part number). Tomorrow I'm headed up to coeur dalene so we'll see if there is any improvement in the mileage.
90 Legacy L AWD 5mt
Formerly of the USMB but moved from an RX to a Legacy