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I am not able to start my truck and the codes PO112 PO113 PO193 PO 192 and PO336 are coming up I have replaced the CPS and then took it to the dealership. They told me it was the injectors so I took it to 4wheelparts to get replaced( I didnt have the 5400 the dealership wanted). The truck ran for two weeks (as long as the block heater was plugged it) but now it isnt starting at all again.