1996 Ford Mustang Engine still Bogs

Ok what you should do is buy a can of mass air flow cleaner (not carb spray) and pull the mass air flow meter, check the air filter while you are there. Clean the mass air flow meter and put it back in and see what happens. Let me know what you find.

Ok one problem down. Now keep in mind this is a learning computer it adapts to you driving habbits so it may take a bit to come around now that the light is off. Now I do have to ask how old are the spark plugs? Have you tested any sensors? Do you have a digital mutli meter to do some sensor testing? If ou would pull a couple of easy spark plugs and check them out the gap should be between.52 and.56 gap and plugs should be replaced about every 30,000 and don't use bosch platnums as they have caused some idle misses in my Mustang and hesitations too. I use E3 diamond fire plugs they cost more but work great more power and better fuel economy. I do have to ask any performance mods? Thanks

Ok did you check for codes? If so get back to me on the codes ok. Now if you have a digital multi meter then I would like to have you check a couple of sensors. First the coolant temp sensor just simply unplug it (when it is cold) and then check the ohms on the sensor (not wire harness), get back to me with what the ohms are and the temp at the time of the temp. Now I would like you to check the throttle position sensor, you will need to take a paper clip and back probe the red wire at the connector (do not disconnect it for this test), now hook up your meter and set on 20 volt scale turn the key on engine off and see what the voltage is with throttle closed (make note), now slowly lift the throttle and the voltage should steadily increase with no dorp or glitches in voltage and take it to wide open throttle and make note of the voltage. Now get back to me with the voltage at closed and wide open and let me know weather or not the increase in voltage was steady. Note just for fun I have added some performance mods to my 98 V-6, she has a flowmaster 2 1/2 inch dual catback system and BBK cold air intake and throttle body and in the future I am planning some suspension upgrades and an 11 psi procharger to put it near 500 hp. Get back to me with your findings and we will take it from there. I never asked how clean is the air filter?

Ok that works. Let me know what you find and we will go from there.