Just threw a p0251 code, injector pump reg control, read it may be fca, I read some where else some one having a similar problem of power loss and exhaust tone and they changed their fca and fixed the problem, I unplugged my fca while truck was running and it knocked and idled wild, I turned it off immediately haha, not sure what that means, I have a buddy's fca I can swap to see if that does anything tomorrow, fingers crossed

 

Anyone? Will be trying my buddy's fca later but was hoping for some type of feedback

 

Well took the valve cover off and rechecked my work, everything is torqued accordingly, I then proceeded to turning the truck on without the valve cover and disconnected one wire off each injector one at a time as it idled, each time I removed a wire the engine responded and seemed to idle worse then back to normal when I connected the wire again, so I'm assuming all 6 injectors are working correctly? Thanks in advance

 

Give the FCA a try and see how it does.

 

what is the fca?

 

FUEL CONTROL ACUTATOR. I didn't know either till recently

 

Tried different fca and map sensor no difference

 

Your initial symptoms sound excatly like my truck before I had the injectors replaced.
I'd be concerned that it is injector centric... there is a ton of posts on here about issues with remanned injectors.

 

Did you do the torque sequence correctly? New tubes? Check the overhead lash afterwards? It's very important to initially install everything at the lower torque and then step up to the final torque to get everything to mesh right.

 

It kills me to see someone using remans but I understand money isn't easy to get. Where did you purchase them from? Is there any hazing at idle or smoke on start up? New tubes? I would loosen and retorque everything.

 

Find someone with a good scanner and read what pressure your getting out of your cp3 cranking, at idle, and max.

 

Thanks for replys guys, truck starts breaking up closer to 2k rpm and puffs out white smoke, the cp3 has 300k miles when I installed the fass 150gph, maybe it took a ? I'm allot more meticulous then my younger days with a vise grip on everything lol so believe me when I say everything is torqued to spec, I thought I could get away with remans, the only thing I went cheap on, now gotta pay and do the job twice I guess, and I don't know anyone with a scanner, I guess advance auto parts could scan and check fuel pressure?

 

I bought a Bosch Mobile Scan from my local autoparts store about a $100.
Works very well, it plugs in to the OBDII port and connects to your smart phone via bluetooth.

The cool thing about it, is that you can monitor and record data, gathering the rail pressure while cranking was very helpful for me.
https://www.oreillyauto.com/detail/...nt-16488/diagnostic-16546/code-readers-scanners-17943/scan-tool/obd1050/2578937

 

What year is your truck? I've read older than 05 you can't get rail pressure from obd.

 

I wonder if that's with the phone apps?

 

If it were me I would want to know your pressures from your cp3 before you change anything else, if your low its not gonna run right.

 

Yeah can't get rail pressure on the torque app but of I can get it with that Bosch scanner I'll Fed go pick one up

 

Anyone tried this on a 04.5 or earlier truck, and got RP and CRP, that will be useful. It is possible, but I suspect with nonstandard I/O, not the usual OBDII PID traffic, because the Edge Insight, and Smarty Touch, supposedly can pull that information up for at least the 04.5.

 

Reman inj came out of a spare ho engine I had sitting around for a few months, but ran great and had low miles on the injectors like 2k miles with receipts and what not, I guess I was dreaming thinking they would still be good, they gotta be clogged up something serious for the huge lack of power it had, but what I didn't understand was it turned right on and would smoke black with acceleration, but my original inj would only start with starter fluid but ran excellent and truck was loud as the devils harley, with remand only at high rpms driving it would shutter and puff white smoke, and the truck sounded completely different from before, sounded like someone put a muffler while I wasn't looking during the inj swap haha but to my surprise no muffler and no little green men