hi peoples, we just bought our first stagea a week ago S2 RS4. absolutely love the car and the way it drives. but very poor fuel economy bout 300 on full tank of bp ultimate... ouch! have noticed the engine light has come on twice now and goes away after i shut it down and restart.
we have serviced it,including fuel filter,and cleaned AFM and throttle body.
will be changing O2 sensor and coolant temp sensor this weekend. hopefully. providing i can get the parts.
any other suggestions?