Archived 04.5 p0148 code no power

[Dobey71]

Hi new to site have a 04.5 3500 stock just put all new reman injectors in and keep getting p0148 code replaced FCA sensor runs a little smoother but has no power I have replaced lift pump a couple of years ago also changed fuel filter twice now after injectors any ideas help
would be great
Dobey71

 

[Wayne M.]

Welcome to the TDR.
First question- Why did you get to changing these parts? A back story is needed.

 

[Dobey71]

Sorry Wayne M
Long story short nephew borrowed truck for an hour brought it back ran ruff and was blowing white smoke was getting to point wouldn't pull hills empty very good so checked a few things that led me to injectors and after installing them still ran ruff so did the unplug test for fca seamed to
start better unplugged so that's why I replaced it does make it run soother at idle I also removed banjo fitting on back of head to check for blockage didn't see anything

 

[Wayne M.]

Is it still smoking after the injectors? Where did you buy them from?

 

[Dobey71]

No smoke local injector shop I used to use all the time

 

[Wayne M.]

You need a good scanner that'll read your rail pressure, and poke around here to see how to a fuel return volume test.
Have you sampled your fuel for quality? Did nephew buy fuel for you?

 

[Dobey71]

I'm checking on getting a scanner no nephew didn't I just put fuel in it after install and fuel return volume test is that the one remove return line from tank? and see how much comes back

 

[Wayne M.]

is that the one remove return line from tank? and see how much comes back

Yes. Measure volume vs. time
If you're looking to invest in a good scanner for the long run- PC based Autoenginuity with the Chrysler package is hard to beat.

 

[Missouri Mule]

Just googled the po148 code (several threads on it ) rail pressure sensor is not seeing the reguired fuel pressure the ecm has set. *They say the cp3 is at fault but they state usually a box/chip/ progammer is *involved.
The threads were mostly tdr threads.
*They also stated the lift pump was probably the ptoblem.

 

[Missouri Mule]

Just googled the po148 code (several threads on it ) rail pressure sensor is not seeing the reguired fuel pressure the ecm has set. *They say the cp3 is at fault but they state usually a box/chip/ progammer is *involved.
The threads were mostly tdr threads.
*

 

[Dobey71]

Wayne I have been looking at reviews on the autoenginuity scanner it kind of gos both ways as far as pros and cons can you get the domestic one and be good or go manufacture specific I have dodge and chevys to deal with it sounds like it does a lot of stuff for less
Missouri Mule I googled it to came here hoping I can find out its the lesser of the two evils or something smaller I got this truck with 42000 miles hasent had any problems in ruffly 9 yrs till now with 138000 miles ruffly

 

[Wayne M.]

AE scanner comes with generic OBDII and you add on packages as needed. The full boat is quite the deal but wayyyy tooo much for me. Since I'm all Mopar and can get Ford and GM. support if needed, I went with the Chrysler only package.
Its def not a simple program like a basic scan tool, but after learning some stuff it's great. Their support is good too.
to nail down your issue, you'll need to follow the proper diag. There's a few items in the fuel system to check, and IMHO need to start with the very basics and then do what I mentioned above.
There are some here who know the system better than I. Perhaps they'll chime in soon.

 

[Missouri Mule]

Could be Cp3 but mite be rail pressure relief valve. Your lift/fuel pump is in the tank right?

 

[Dobey71]

Bill
No mine is on the fuel filter I ordered the fitting for the flow test should be here tomorrow

 

[DonFitzwater]

Bill
No mine is on the fuel filter I ordered the fitting for the flow test should be here tomorrow

Get a spare or do yourself a favor and replace that lift pump now.

 

[Dobey71]

Don*
Do you recommend going back to stock lift pump or a fass system I've been looking at them just in case that's the problem*
Thanks again*
Darren

 

[Missouri Mule]

The pumps on the filter were known to fail. The Fass drp that fits on the filter has had bad reviews but one of the members found out that the screen on the fuel tank module had black stuff on it. Which kept fuel from being sucked by the pick-up fuel tube. So you mite want to check see if your tank module has this black stuff on it or buy the Fass 95.
I took apart my fuel heater/pre filter many years ago on (Over 100,000) Mule and the pre filter (which was 3/4 covered) had black stuff on it. Carb cleaner and a wire brush got it off.

 

[Missouri Mule]

The pumps on the filter were known to fail. The Fass drp that fits on the filter has had bad reviews but one of the members found out that the screen on the fuel tank module had black stuff on it. Which kept fuel from being sucked by the pick-up fuel tube. So you mite want to check see if your tank module has this black stuff on it or buy the Fass 95.
I took apart my fuel heater/pre filter many years ago on (Over 100,000) Mule and the pre filter (which was 3/4 covered) had black stuff on it. Carb cleaner and a wire brush got it off.

 

[Dobey71]

Hey guys sorry about the long pause getting the 9012 fitting local was a problem did flow test and got just below 50ml did get a scanner will get hooked up here and see what I can find thanks again for the help

 

[Dobey71]

Wayne
I did flow test it was 50 ml per minute and I got AG up and running fuel pressure senor shows 7063. And set point was 6886. At idle cold