Hey gents, Well still no luck on my powerloss at 2800 rpm, I have removed my EDGE E-Z for the time being. well I went to the local auto parts shop and bought an OBD II scan tool, and it is giving me a ( P-0251) does any one know if this is my problem? should I erase my codes?truck just went over 14,000 miles and I hope i havent hurt anything. thank you for any help guys

Josh

 

Just a little more info, I looked up the code and it states " Injector pump fuel metering control "A" malfunction (cam/ roto/ injector) "

maby this will help someone ,,,, becauseI am at a loss

thanks again

Josh

 

That is what mine is saying too.

Supposed to be getting a new injector pump next week.

What kind of symptoms do you have?

I was getting a stumble or sputter and then no throttle and after about 5-15 min on the highway it would sputter again and the power would be back. My fuel pressure would climb from 10-12 at cruise on the highway to 15 and then return to where it normally would be afterwards.

Then, I would get the stutter or stumble all the time and my fuel pressure was gradually dropping...under acceleration I could hit zero and from the feel of it, empty the filter canister because I could stall the truck.

So the dealer said it was my aftermarket lift pump and put their in-tank replacement in and I get the same pressure at idle with it...7 at idle and pulls to 0 fast. Only difference is there is no stumble now but hook up the trailer and it feels like I emptied out the fuel supply again when accelerating in 5th or 6th on the highway.

We are certain the internal assembly of my old pick for the fuel tank was melted in places...which may have been causing the stumbles. Sucking air or sucking the tube shut.

The test was done on the road with an obdIII and we found that at WOT I had 5500 PSI that rose VERY slow to 19,000 and the number the ECM [at least I think that is what was commanding this] was asking for 24,000 plus. At moderate throttle we did not see any close numbers.

I would leave the code in place.

Scotty

 

Mine did the same thing july 1st I was driving it and it lost all power on top end 2000 and up. No codes I ran it for about two days and still no codes I hook my camper to it and it throwed the code first thing. It was a p0251 I took it to the dealer and they replaced the fuel limiting sensor or something like that. I have the paper at my house I'll check it when I get home this evening and let you all know for sure. But it is fixed now and I even get about 1-1.5 mpg more on fuel to.

 

It was the (fuel press limitting valve)
sorry about taking so long to get back

 

well, I have not taken my truck into the dealer yet,,, I am a bit nervous about my local dealer. We are talking about the same guys that had my truck for 2 days for a oil leak, and we ready to pull the motor and tranny befor I asked them about the breather tube>>sure enough they looked at the tube and thats where the oil was comming from. I hate to go in to these guys and tell them what I think that it could be. they think that I am some punk kid know it all.... well I guess that I will just have to see what they say. thanks for the input guys

Josh