Ok so, I have a 98 Accord Coupe 4cyl VTECH with the A1 motor. Had the code read, P0135. Tested the wires from the harness and got all the right readings. Replaced the O2 with bosche, then denso. Both of which gave good readings. When reading the live data Its frozen (off). Previous owner had the ecu replaced and smogged before I bought it (my engine light came on, on the way home) believe me if I could go back I would do something about it. However, any ideas on a solution? What could the cause be? This is extremely frustrating. I'm trying to smog it and sell it before the end of this week.