h_civ2000

Over the past year, my 2000 honda civic lx (d16y7) has been throwing both p0131 and p0132 codes for high and low voltage in the primary o2 sensor. The sensor has been replaced twice and the CEL returns after clearing within 50 miles of driving. The primary symptom began occurring only when driving at speeds of around 55+, but now it will happen at anytime while driving. The car will act as though i have taken my foot of the gas when i havent and will slow down and start to stutter/buck. If I give it more gas the bucking will stop but will usually return in a second. If I am at a stop it occurs, the RPMs begin to drop and the car feels like it is about to stall out until I give it a little gas. This will all eventually stop for no apparent reason. I have replaced the fuel filter, spark plugs, plug wires, distributor cap, swapped ECUs, added fuel injector cleaner to gas, and sprayed throttle body cleaner. I also sometimes get a rotten egg smell for a little while when driving but the smell will go away. It doesnt seem to be from a fouled cat as the symptom comes and goes. Any suggestions would be greatly appreciated.

PTWoB229

Hi...I have a 2002 Civic LX with 155,000 miles and this is exactly what has been happening to me over the past couple of months. Did you ever figure out what was causing it? Or find a fix for it?