hopefully someone can help me out on this soon. Its the only thing I got to drive at the moment . Also now have a P0046 code.

 

could be a bad injector, or a dead cylinder.
where did you get the injector from?
a lot of injector "rebuilders" send out junk that is worse than what you pulled out of the engine.

 

Sorry I didnt see where you gad replied. Honestly didnt think anyone was gonna chime in at all so I been trying to figure it out by lots of research . Bought the injector from Rockauto , ended up pulling it back out ( #4) and switched it with #2 and the problem followed the injector . So now I took old injectors and made one hood one. No more codes but truck still has low power on take off and hard 3K rpm shifts . Doing scans with Reach 123E and only codes are from egr delete . Any help would be appreciated before I end up blowing her up lol .

 

Also pulled the turbo and everything looked fine except when manually movie the unison ring the actuator arm wants to stick far left and far right to the point you have to lift the ring off and move the arm . Placing the ring back on it moves fine in the middle but if you go too far left or right it will get stuck . Not sure if this is normal or not since once you take the ring back off you can move the arm rather easily.

 

sorry, i know nothing about the 6.0. never had one, or worked on one.

 

Thanks anyway , maybe somebody will come along and help me out. This site use to be the one place I knew I could count on but maybe everyone has moved on or got better trucks LOL . I dont blame them I would too if I could afford it .

 

About 8 years or so ago the owner sold this site and started another one.
Most of the old timers didn't like that and followed him to the new site

 

Bummer

 

I think you would get a under speed or over speed code if your ring was sticking to the far end.

 

So far Ive not got any codes other than the egr delete . Maybe there are codes there that my reader dont see . Wish it would throw some codes it would be possibly a little easier to figure out whats going on with it. VGT in scanguage ranges around 40 to 60

 

Is the truck straight piped?

 

Yes it is

 

Ran a scan today and Baro is 13.5 Map -13.9 Inferred EBP - 2.5 . I have early 04 and dont know if it has been flashed to bypass ebp sensor or if thats an indication that the ebp is bad . Funny that its not throwing and codes . It also says Unable to learn VGT position - YES . Unable to learn ebp due to faulty sensor in the circuit - YES . So my question is does that indicate the EBP sensor itself is bad or is it relying on another sensor for the reading and that sensor is bad.

 

When I start my (straight piped) truck it sounds like a typical gas V8 then the vgt kicks in and you can hear the turbo whistle out the exhaust, sounds like a jet engine. Does your do the same? If so I would think your vgt is working.

I thought the ebs no use was in the 03 but I really don't know.

 

My turbo doesnt whistle like it use to at idle or maybe its that Im more use to it now. That said the whole truck isnt what it use to be , at 350K its seen better days lol . You can plug and unplug the vgt with noticeable difference .

 

You can tell if you have the inferred EBP flash in your '03 engine by looking for several PIDs:
EBP_A (only present in flashes without the Inferred EBP update)
EBP_G (this should be present in all "flashes")
EBP_inf (or EBPinf - present only when you have the Inferred EBP update)

 

PID

The only thing I can see with the scanner I have under live data is EBP inferred . I dont see anything that says EBP A EBP G . So I assume I have the update .?.?.? If so does that mean I need to stop looking at the ebp sensor and start looking toward something else ?

 

With EBP_Inferred - you have the update.

 

Thanks for the link Ill look it over and hopefully find something I can check out. Hate to keep driving this thing if Im doing more and more damage but at this point really have not other options.Everything Ive tried so far seems to check out, I dont know what the damn things problem is.

 

Sounds like your vgt is working

 

Still at a loss on this , no one here has any idea what it could be or at least something I can test to try and figure out ?

 

Guess nobody knows anymore than I do LOL ! WTF

 

Does your truck use the ebp, Im not sure from what bismic says

 

If it is inferred, then the PCM is estimating an EBP value. That is the meaning of an "inferred strategy". The sensor is NOT used. The only exception would be if he has a custom tune, because if he does, the tune writer could have written a tune that uses it.

I have no real respect for the Launch (or Reach) scan tools. The Scangauge does not thoroughly retrieve codes either. ForScan is much better. You very well could have more codes.

I also have my doubts about the injector from Rock Auto, even though swapping the solenoids seemed to eliminate the code. That said, perhaps it is fine now.

Code P0046 is set when a short to ground, open, or short to power is identified in the VGTCV or wiring between the PCM and VGTCV. This circuit is a continuously monitored circuit that takes less than 1 second to set. First thing to do is to verify that the VGT actuator is fully plugged in and that the connector and wiring are not damaged. Typically with this code you will see the VGT commanded Duty Cycle go to 85% and stay.

Examine the VGT connector closely, or maybe even just change it out.

 

I got the Reach scanner because I had used one from a friend and it could do a buzz test . I know its not the greatest scanner but its what I got . I never could get any reliable connectivity from the ForScan but Ill try it again . Im sure it may very well have hidden codes. The Scanguage I normally just use for extra guages , I agree its junk as a scab tool but pretty useful as a monitor and diagnosing a no start due to ICP,FICM and SYNC no starts.

The Rock Auto injector from BWD is in the garbage where it belongs I took two OEM injectors and made one good one .

Ive replaced the pigtail and VGT with no change in performance . You can hear a difference in tone in unplugged vs plugged . Ill see if I can get logged back in into my old google account and get the Ford Scan tool working . If no luck there I guess maybe its time to take it in to the shop and see if they can tell me anything . Though alot of them around here fear working on the 6.0 . I actually had one shop tell me a long time ago that oh youre already doing everything we would do , just keep at it youll get it . I thought to myself well Im glad I didnt take it there. It ended up being a small hole in the pickup line inside the fuel tank and would start sucking air once it got below half a tank . Something I would have never thought to check until I saw aa member post one here about it after about 6 mths of looking and the truck sitting dead. I filled her up and fired it right off. No codes for running that lol .

 

Good deal with the injector.

The thing about the P0046 code is that it is an electrical one. IMO you just haven't found the source yet.

Unfortunately SEVERAL people have tracked that code back to a PCM issue.

 

Good deal with the injector.

The think about the P0460 code is that it is an electrical one. IMO you just haven't found the source yet.

Stull havent been able to retrieve my old account on google so I can run the For Scan . I know you dont care for the Reach scanner but I was able to learn that the VGY for whatever reason has learned 100% , dont know why or what this means ? However, last night I was pulling a long hill and watching boost on scanguage when all of the sudden the boost which had been only been able to reach 6 jumped to 19 and the truck came alive . Almost like it had been stipped up, stuck or restricted . Unfortunately today I pulled out from a side road to the highway and again no boost . But once out on the highway and running about 55/65 MPH boost jumps back up and truck runs fine . Could poor fuel be causing this or do I definately have problems with turbo ? Leak I assume would constant?

 

Power brake to 15-20 psi, see if you can make it.

 

No Sir , far from it. Brake torqued it will onlu build 0.6 boost and wont go above 1200 rpms . Its bad sick LOL

 

Injectors

 

All pass buzz test and no low contribution codes . Once the truck starts to produce boost it runs fine .

 

If it's not a boost leak it's your injectors

You can't build boost without them

Also check for up pipe leaks

Boost system works like this, your problem is in here

Compression > injectors > up pipe > turbo > cac/intake system

 

If it was compression, injectors or boost leak , you would think it would never build boost or run with any power ? But on occasion it will pick up and fly right .

 

P0046

So to start I have 05 6.0 only engine work done egr delete. I was at hunt camp on weekend had few too many, took my truck out in a trail where a 8000lb truck not have been. Long story short got very stuck bounced truck off rev limiter and truck shut off but fired back up. Had to leave truck over...

www.powerstroke.org

With the engine running, wiggle the VGT wiring and also wiggle the wiring harness that it runs in (IIRC it runs under the air intake tube).

Also, check your EGR throttle plate and its connection/wiring:

Sanity Check on P0046 (Early 2003 F250 6.0) - Ford Truck Enthusiasts Forums

6.0L Power Stroke Diesel - Sanity Check on P0046 (Early 2003 F250 6.0) - I posted this as a response on another thread to only realize it is years old.... probably would not be seen.... I have been chasing the P0046 gremlin on my (early) 2003 F250 6.0. From what I have been able to glean after...

www.ford-trucks.com

 

Will check it soon as I get home. Thanks

 

Could the variable vanes in the turbo be hanging up?

 

Sounded like they were working for me