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Unread 09-06-2013, 06:59 PM   #1
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2004 WJ 
Join Date: Oct 2012
Location: spokane, washington
Posts: 14
Wj Wj with lean bank1&2 codes low fuel pressure

Ok I have 04 Grand Cherokee 4.7 V8 Limited four-wheel-drive just hit 100k About a week ago I had a problem It through two codes 0171 0174 Bank one and bank to lean I had been having starting issues a couple days prior to the codes being thrown It will start according to the fuel pressure regulator gauge I put on it I have around 20 pounds of pressure When I shut it off it drops instantly I am able to drive it at half to three quarters throttle But when I stomp on it It goes to about 3000 RPMs and sits there it does not climb in speed or rpm's At least that I know I don't want to sit there at wide-open and it's not doing anything You can hear it sucking in the air She is not putting out the power though I have blown out all my airlines replaced the fuel pump And the fuel filter I'm at a total loss on what to do. I need help this is all I have to get around thank you

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