[dirizarr]

I have a supercharged 93 gt in which I just installed 42lb injectors and a 255 high pressure walbro fuel pump. Ever since my car runs pig rich and my TPS sensor doesn't want to go lower than 2.60. I even bought a new TPS ans the same reading showed up. Any ideals why this is happening is the new 42's causing this or should a chip be burned to fix my running rich problems. My car barely stays on and you smell nothing but fuel.
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[GTRaptor]

Is the throttle blade fully closed?

You might need to adjust the TB screw out until it no longer touches the throttle plate stop. Insert a 0.010 feeler gauge between the screw and the stop and turn the screw until it touches the feeler gauge. Then turn the screw another 1.5 turns. Then adjust the TPS

[hotwheels]

also be sure to test the tps with the key on, engine off..........hotwheels

[clint walker]

don't forget to check the continuity of your meter leads. if your leads don't have low resistance, it could give you a bad reading. I'm not saying that's your problem but it's something many people overlook when checking stuff with a multimeter