Hey all,

My 1990 244DL w/ 331K has a cold engine problem. When I first start it in the AM, it idles fine, however under a light load, particularly at low RPM, the car stumbles and misses. After it warms up, the problem is almost un-noticeable (you can still feel a bit of hesitation- very minor). I recently replaced the spark plugs, cap, rotor, and the car has magnecore wires.

When I bought the car, it did have the check engine light on, and the codes indicated a faulty O2 sensor. I reset the codes and they have not come back yet (150 miles, couple of longer trips). Does this sound related to a bad O2, or possibly other problems.

If feels like a spark problem, possibly fuel... But spark comes to mind.

Thanks!!

Dan