Could you post the code number you got for the O2 sensor please.
Also, did the check engine light go off and remain off since you changed the O2 sensor? (If so, we don't have to worry about trying to trace the O2 problem)
Also check fro vacuum leaks, especially at the rear of the intake manifold; the pcv valve hose often gets a hole in it and can cause stalling problems. (This is on the 4.6L and 5.4L engines - What size do you have?)
Wednesday, July 24th, 2013 AT 7:16 AM