Right, but what we're trying to fix here is becasue the regulators flow more then stockers, we need to cut back on the flow (add mA) to get it where it's supposed to be; If the ECM's calling for 10,000mm3 of fuel, and the stocker needs 1233mA to get that much fuel, then the mooded one would flow 12,000mm3 at the same voltage (Just an example I pulled out of the air), so the voltage needs to be raised to get the flow where it needs to be. Or am I out in left field? :rofl:
modded regulator fix
- Thread starter 02bigstrokin
- Start date
Right, but what we're trying to fix here is becasue the regulators flow more then stockers, we need to cut back on the flow (add mA) to get it where it's supposed to be; If the ECM's calling for 10,000mm3 of fuel, and the stocker needs 1233mA to get that much fuel, then the mooded one would flow 12,000mm3 at the same voltage (Just an example I pulled out of the air), so the voltage needs to be raised to get the flow where it needs to be. Or am I out in left field? :rofl:
sounds about right to me, i have a b1010 table that works perfect with a stock lmm pump if you want it as a starting point for the modded regulator.
GMC_2002_Dmax
The Still Master
The simple answer is in how the regulator works.
The fuel quantity or fuel flow is related to how "open" the regulator is, the more closed it is the more AMPS required to limit the fuel flow thru it as it is spring loaded and is normally wide open absent any amps being applied.
Cougar281 and sweetdiesl are correct, the amps vs flow table what you need to adjust.
If you look at LB7 scaling, LLY scaling and LBZ scaling in efi-live tune files you can get an idea of what is needed to "fix" the problem.
Re-read Super Diesel's post as well.
If you log the regulator using these PIDS you will get an idea of what you need to fix.
FRPACOM
FRPCOMM
FRPADES
FRPDES
FRPACT
While Idling and driving, if you see the regulator amps goto ZERO you have too little fuel, so reduce the amps, if you see it overshooting act vs desired rail psi you need to slow fuel down, increase amps.
With a MOATES Road-Runner ECM it takes a few minutes, without it a few hours......
The real challenge is a modded LB7-CP3/LB7 regulator with a modded LBZ-CP3/LBZ regulator as they both need differen't amps to work properly individually but work off of one controller when commanded together, that was a half hour job on on truck with a Road Runner ECM.
Good Luck,
The fuel quantity or fuel flow is related to how "open" the regulator is, the more closed it is the more AMPS required to limit the fuel flow thru it as it is spring loaded and is normally wide open absent any amps being applied.
Cougar281 and sweetdiesl are correct, the amps vs flow table what you need to adjust.
If you look at LB7 scaling, LLY scaling and LBZ scaling in efi-live tune files you can get an idea of what is needed to "fix" the problem.
Re-read Super Diesel's post as well.
If you log the regulator using these PIDS you will get an idea of what you need to fix.
FRPACOM
FRPCOMM
FRPADES
FRPDES
FRPACT
While Idling and driving, if you see the regulator amps goto ZERO you have too little fuel, so reduce the amps, if you see it overshooting act vs desired rail psi you need to slow fuel down, increase amps.
With a MOATES Road-Runner ECM it takes a few minutes, without it a few hours......
The real challenge is a modded LB7-CP3/LB7 regulator with a modded LBZ-CP3/LBZ regulator as they both need differen't amps to work properly individually but work off of one controller when commanded together, that was a half hour job on on truck with a Road Runner ECM.
Good Luck,
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The real challenge is a modded LB7-CP3/LB7 regulator with a modded LBZ-CP3/LBZ regulator as they both need differen't amps to work properly individually but work off of one controller when commanded together, that was a half hour job on on truck with a Road Runner ECM.
Good Luck,
Hmm ,I cant wait for that.