Ford Repair: 1999 Ford Escort ECM, oxygen sensor, fuel problems

Question
Hi Mark,
I got a 1999 Ford Escort with the 2.0 liter engine, 87,000 miles, auto trans. I recently took the car to a dealer for a check engine light. My scan tool told me it was the heated oxygen sensor circuit. I checked the sensor and it seemed good. The dealer told me the problem was the ECM. They changed it and had it programmed. Now the car dies out numerous times on the highway. I put about 2100 miles on it, since the ECM was changed. I rechecked the car with my scan tool. The I/M Readiness test showed "incomplete" on the catalyst mon, evap sys mon, oxy sens mon, oxy sens htr, and egr sys mon. After 2100 miles these 5 should show "ok". Right? Do you have any ideas about what could be wrong, or what I should check?    Thanks...Bob

Answer
you are correct by now those monitors should be complete as long as you are taking varied trips
for example if you only drive 10 to 15 miles at a time short trips then the monitors would have a hard time resetting-also things like the engine running to cool would cause it also. i would go back to the dealer since you just had the ecm replaced have them take a look at it just keep in mind a lot of things can keep the monitors from setting and may not be anything wrong with ecm you would have to look at the resetting conditions for each monitor and determine if there is a common item causing a failure to reset. if the 02 sensor is original i would replace it if the heater circuit is intermittent it can cause fuel problems.

Bob i realize you understand this but just so anybody reading this will know scanning a vehicle and getting a code does not tell you what is wrong for example a code for tps fault does not mean the tps is bad several things will set that code.