Question about 1990 Volvo 740
Dont run the fuel pump and relay its ok i dont have power the my lines injector i dont know why?
Check under the hood for a box containing your fusible links (they look like large blade fuses in most modern vehicles). The fuel pump relay only operates the fuel pump. It doesn't provide power to the rest of the fuel system. Odds are the fuse for the injection system is blown. The inside of the cover of most fusible link cases usually has a diagram which tells what each fuse is. The easiest thing to do is locate that fuse and remove it (with the vehicle off of course) and visually inspect to see if it's blown. If it is, simply replace it and see if that corrects your problem. While you're under the hood you might want to trace the wires back to their origin and check to be sure the harness is not rubbing or chafing against anything that might have caused wires to break and short. It's rare for those fusible links to blow without a reason.
Posted on Feb 05, 2009
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Posted on Jan 02, 2017
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