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  1. M

    98 c1500 4.3 vortec misfire

    Truck idles fine but misses on acceleration, doesn’t matter if it’s p/n/d. if I unplug the tps it runs mint. It has a solid 5v signal and good ground. 3rd wire goes from 0.5 volts to 4.5 volts with no hiccups. Truck has a new fuel pump and spider injector. New plugs and wires. New maf and tps
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