hi
Ive got a 2006 hawkeye wrx Estate standard apart from a prodrive upgrade and it keeps throwing up a lamba sensor fault on bank 1. Sensor has now been replaced twice once with a non genuine aftermarket sensor 2nd time genuine subaru dealer supplied sensor. Replace the sensor and the car runs great for about 60-100miles then ping lights back on same fault. Any ideas??? its done 71000 miles always been regularly serviced and looked after.
when the lights on it drinks fuel and is hesitant on acceleration. light off and it's exactly how it should be. So its definetly a sensor fault not a mechanical issue.
Thanks Rich
