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Looking at a wiring diagram so you know what all is involved in the electrical circuit . http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model an engine . Under system click on engine , then under subsystem click on fuel controls . Click the search button then the blue link .Scroll down to the # 7 diagram . Looking at the diagram i see fuel pump module . Fuel pump is controlled by a electronic control module (computer) . This fuel pump module talks with the PCM - engine computer . The fuel system on your vehicle is called electronic returnless fuel system .
code p 0307 is misfiring on no 7 cylinder ====causes --- engine mechanical fault ---wiring---ignition/ fuel system--injector --ECT/MAF sensor---ECM
look for low fuel pressure or ignition control module
I Had a dodge ram that did that wouldn't start.. I had to buy a crank position sensor.. I don't know if fords have them but worth trying out. or it could be fuel pump is week..which is common. I hoped I helped..
Does any one have a idea a friend here has changed ecm, inj, fuel pump checked conector at fire wall ,fuel and has a short wrecker tow f450 99 and will be going down the road and he says the thing just loses all power and kind of just won't do over 15 to 20mph and lets it sit and he says it will do it again. I am not sure how long it takes but since I don't work on diesels I figured I would have the experts that do if anyone knows it's you guys any help he is in Charlotte NC I can put you with this guy he has had it to all the parts changers and no luck Thanks Mark 704 492 1647
the fuel pump and radio are not on the same circuit, most liokely the fuel pump is shorted, that is the most common cause, get under the truck and disconnect the fuel pump connector at the tank, if the fuse doesn't blow then u need a new pump.
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