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My whole missing and not running properly problem was indead the TPS. Easy to replace for 27 dollars and some change.
It caused truck to buck, not idle properly, not have much power and such, all cause of lack of fuel. so, if you haveing some of these problems. REPLACE OR CHECK IT!
My truck is only missing under heavy accleration. Once you get up to say 25mph, you can use almost 90% throttle and it runs smooth. Was that what your truck was doing, or was it missing all the time?
Just want to say I just got done taking the TPS off and spraying it with some WD-40 (I didn't have any carb or brake cleaner) and towel cleaning it, and my truck runs like a champ now.