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Hey kaalsb,It sounds like it could be the AAP. As I remember you can carefully remove it with 3 screws. It’s a little tricky to get to. It has a rubber diaphragm that fails because it gets a hole in it and allows excess fuel into the mixture.http://www.offroadforum.cz/toyota/aarc.epnet.com/application/8578/8578R04_Auxiliary_Acceleration_Pump__AAP.htmlhttps://www.google.com/search?q=22r+carb+rebuild+kit&rlz=1C1AOHY_enUS708US708&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjd-_fJs4LQAhXogVQKHc7aDUAQ_AUICSgC&biw=1024&bih=633#tbm=isch&q=22r+carb+AAP&imgrc=vKa1UZ8O_QZq_M%3ACheck the vacuum hose as well.http://www.autozone.com/repairguides/Toyota-Pick-ups-Land-Cruiser-4Runner-1989-1996/EMISSION-CONTROLS/Auxiliary-Acceleration-Pump-AAP-System/_/P-0900c15280060d7fHave you physically checked the float level?Gnarls.
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