Okay, heres the deal. My 1987 190e 2.3-16V sputters(engine wants to die) when I am driving in any gear at almost any constant speed. Accelerating only sputters for about 1 second then accelerates fine, but then when i hit the speed I want, it starts to sputter again. It has been doing this for a while now and I am stumped. Could it be a faulty o2 sensor doing that? Only reason is because the sensor light comes on, then turns off after a while. Any help would be appreciated. Thanks!