Dual fueler SURGE AT WOT issue ECM overcorrecting? PID LOOP?..Log Inside

[Dmaxink]

I'm at a near witts end here. Possibly this is not a tune issue, but sure seems to be fixable via FRP PID LOOP correcting. It seems as though the ecm is seeing desired under and overshooting actual and over-correcting.

Does anyone have any insight? Possibly fought and conquered this issue on a lbz with dual fuelers? I was commanding 183mpa and 2800ish uS.

Thanks for any help, i sure appreciate it.

-Kory

[killerbee]

To me, it appears you are fighting traction defueling. The VSS curve is what I see, tires breaking loose.

[Dmaxink]

No it was what i had suspected with the PID loop..obviously it could not be fixed with the loop itself, but i did find a way to do so and i can command 26-30k no problem with no fluctuations whatsoever.

Thanks though!

[bondurch]

It would be cool to know how you fixed it. I have the same issue when I'm WOT.

[Black6spdZ]

need to re-curve the regulator current vs flow table

[IdahoRob]

Chuck, email me. I have tuned many that do not do this.