I recently change the fuel pump and the gas tank. I also change one injector but the other one is not working right but I'm able to crank it up until it blows the fuse. This is just one of my problems is also smoking like heck (white smoke). I'm guessing is a head gasket, for what I been reading on Internet. I need to know what can make the fuse that control my gas to blow. If some have any pointers that can help me.
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No need to guess.
If it's a head gasket the white smoke will smell sweet like anti-freeze. Easy fix. Have a machine shop flatten the heads. When you get em back install with new head gaskets.
If it's burning oil it'll smell like burnt tires or belts.
Oil smoke at startup that clears up in a few minutes is valve stem seals... Easy fix.
If it's a pest control vehicle leaving a cloud of oil smoke everywhere or just blowing oil smoke at idle, even when warmed up, then you have piston/cylinder area problems.
Since the power problem showed up after you performed service you need to look at what you disturbed... You changed an injector and the fuel pump.
The Injectors are on Circuit 439. Circuit 439 is fused by the ECM 1 fuse. You're not blowing that fuse... and since the ECM switches the ground side of the injectors we can move on from them.
ECM-B is Circuit 440. 440 feeds the Both plugs on the ECM, and the fuel pump circuit. This narrows it down a bit.
Since you had the sender out to change the fuel pump you removed the pump and sender/fuel-pump ground terminal from the frame.
My first thought is the tank ground is not making good contact. Amperage draw is inversely proportional to voltage at any load in a circuit...
If the sender ground is not making good contact the voltage at the pump will be low and it will draw more current than it should... Right around 10A in this case. You probably won't blow a 15A fuse but the fuel pump will run hot, the oil pressure switch and fuel pump relay contacts will get too hot and none of them will last long.
Sand the ground ring terminal till it's shiny and do the same with the frame around the screw hole till you have a good clean contact patch. Use an external tooth washer between the ring terminal and the frame. When you're done hose it all down with Battery terminal protectant or wipe on some grease with an acid brush.
Any of the Orange wires in Circuit 440 or the Tan/White fuel pump power wires in Circuit 120 could be pinched somewhere but try cleaning up the sender/fuel-pump ground first.
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