bad off idle hesitation please help!!!!!

[1st2geclipse]

I am sorry if this is a rerun of some other thread but I can't find one that has my particular problems. My car was having a problem with holding back in high rpms and when I tried to drive the car at a steady pace like cruising at a steady speed it would feel like it had a lttile bit of a stutter but if you gave it gas it would run fine until I got to a steady speed again . Another thing it started was after you would get on it hard and let off and then go to give it gas again it would start missing and feal like it was running on 3 cylinders, if I would turn the car off going down the road and cut it back on it would be fine again. After all of these problems I decided to go back and put a stock set of injecters off my other gst that I new were good and see if it helped any. The swap fixed the problem with it holding back on top but now when you go to take off from a stop its acts like the pedal is doing nothing until you tap it a couple of times and it will finally pickop rpms and go. It acts like the throttle positioning sensor isn't reading until you give it 15 or 20 percent of the pedal and if you let it get low enough in rpms in any gear it will hesitate then take off. I still have the problem with acting like its running on three cylinders when you gas it hard and let off then go to give it gas again, and today it done it when i tried to stomp on it from a low speed in second but I didn't have to let off for it to do it just as soon as I stomped it it went to missing and I turned the key off and back on and it was fine again. Another thing on the hesitation, The idles fine then when you go to take off it will hardly stay running then when it finally does idle up it goes to about 2,000 or 2,500 then it will go. If anyone can help me with these issues I would be very greatful this car has been one problem after another every since I bought it. thanks and sorry for the long thread

 

[Evil_speedracer]

I wonder what the plugs look like in there. Have you pulled them yet? I had a similar issue to this, and the plugs were all kinds of fouled. The replacements helped a lot, but the problem was still there. I then changed the spark wires, and the issue was gone like magic....how old are the wires on your car? You might want to check those too. This might not fix your problem, but it is a good place to start.

 

[1st2geclipse]

The plugs and wires are only have about 100 miles on them. I pulled the number 1 plug that that the code read had a fuel trim problem and it looked clean it was slightly white. I would like to think that the problem with the hesitation is in the tps sensor but when I hooked the data logger to it the reading went from 0 closed to 100 wide open. The thing that bothers me the most is why it seems start running on 3 cylinders at certain times and the only way to stop it is to cut the key off and back on. Thanks for the advice and any other advice would be very much appreciated because I have a fortune tide up in this car and would like drive it more.