If it's a "W" VIN (8th Digit) check the spider injector on the intake manifold. Throttle body will come off with the intake cover, ten 10mm bolts, and two 8mm holding the fuel lines in place. Once you move a few things and lift it off. (and unplug the big plug in the top that actually goes into the spider injector, about 12 prongs on it). Gently pry the spider out of the cradle on each side and squeeze the tabs and pull out each of the 6 injectors. If you take your time a novice can do it in about an hour.
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If it's a "W" VIN (8th Digit) check the spider injector on the intake manifold. Throttle body will come off with the intake cover, ten 10mm bolts, and two 8mm holding the fuel lines in place. Once you move a few things and lift it off. (and unplug the big plug in the top that actually goes into the spider injector, about 12 prongs on it). Gently pry the spider out of the cradle on each side and squeeze the tabs and pull out each of the 6 injectors. If you take your time a novice can do it in about an hour.