P0132 and P0138, Excessive Fuel Consumption...
soooo, i keep getting the codes P0132 and P0138, which as far as i;ve found is High Voltages at the O2 Sensors, and Excessive gas Consumption, and i mean horrible, like 10-12 MPG on the highway, and as low as 4-5MPG in the city... I have replaced both o2 sensors already, but the codes keep coming back, kinda stuck now.
anyone had this problem, it also seems to run a it rougher than it did before, sometimes surges a bit when i'm slowing down.
keeps throwing the same codes out, sometimes throws out P0171, which as far as i've found is a "lean air/fuel mixture".
Any suggestions from anyone?