thammer58309 Posted October 21, 2016 Share Posted October 21, 2016 I have a 2003 cxu613 with a 460 and am having a boost problem. New air to air with new clamps and tubes. New waste gate accurater. Boost comes up to 18 psi then all at once without no warning it comes alive and jumps up to 32 psi and pulls it's guts out. Next time it may not go up seems like no boost until it hits 1400 rpm. Warning light comes on and readout on dash screen says number five injector problem. New injectors with what I call injector drivers. New ecm and manifold gaskets new wiring harnesses. Anybody got any ideas Quote Link to comment https://www.bigmacktrucks.com/topic/47360-low-boost/ Share on other sites More sharing options...
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