Have mark build your tunes off your original stock injector file if it idles fine and sounds fine with it loaded. Sounds like a corrupted file to me if the original tune doesnt do it.
LMM: CP3 Knocking HELP!
- Thread starter TowU4Free
- Start date
Have mark build your tunes off your original stock injector file if it idles fine and sounds fine with it loaded. Sounds like a corrupted file to me if the original tune doesnt do it.
Yea, its very odd to my why after loading the 2nd tune now it goes to reduced power regardless of any tune. I did take the injector flow rate for injector 1 and copy that info into all 8 injectors in the ecm and copied to the gpcm, first spin out after that it through codes for 2-8 being calibrated wrong? Wouldnt let me erase codes even with tech 2. went through and checked it a few hours later and it let me erase them and they havent showed back up since! This thing is a gremlin
Yea, at this point im thinking thats my best bet, I talked to someone at PPE yesterday about this issue and really didn't have a pleasant experience. He mentioned the pump starving for fuel making the noise....with 12psi positive pressure??? And unhook the lift pump it goes away, cmon now. Anyone know of someone in particular i should contact at PPE? I bought the kit used so i doubt they'd warranty anything for me but it never hurts to ask.
Its funny you mention that, I just called and left him a lengthy message. I explained that i bought the kit used off someone so i didn't expect him to warranty the product for me but figured it didnt hurt to ask and that any assistance he can give me would be appreciated, We shall see!
Im counting on that. however the part about the inconsistancy with the lift pump really confused me. sometimes truck wants to die right away when unplugged and sometimes it will run for a while.. Maybe the controller is commanding the cp3 to ask for more fuel from the tank off an on??
I am thinking the 12 psi may be too high. I swear I read somewhere in my FASS paperwork that 10psi was max for a CP-3s inlet pressure.
This would explain why it goes away for a moment when the pump is unplugged. If there is a adjustment on your lift pump try turning it down too say 8psi...
This would explain why it goes away for a moment when the pump is unplugged. If there is a adjustment on your lift pump try turning it down too say 8psi...
It seems to me what I read was for my LBZ which is post FICM. It is a stab in the dark but I couldn't help thinking about it when he stated the knock would go away before dying when the pump was unplugged.
Try it see what happens it is a stab in the dark but what have you got to lose? You obviously have visited this anyway you unplug the lift pump and it went away then dyed. That in it self point too excessive inlet pressure.