djchopps0013

iTrader: (3)

Hey, I need some serious input. I am running LEAN from 5500-7000 range. It doesnt seem to matter what values I put in high octane fuel map i cant get lean enough. I started with lean spool enabled and disable because it was leaning earlier. I know map needs work, im just trying to get to target AFR's and cant seem no matter what. I have replaced vacumm hose from FPR to Mani and added hose clamps and eliminated Fuel Pressure Solenoid completely. I have boost leak tested. I even pulled fuel pressure relay #3 and tested by jumping and completing circuit causing high voltage to fuel pump, still running lean. Yes I did replace relay and not leave jumped. Any thoughts inputs welcome. I am running out of ideas, mods in sig.

5LEEPERISAH23I

iTrader: (23)

sounds like your pump cant put out the fuel it needs to put out. what do u have a walbro 255?

djchopps0013

iTrader: (3)

Stocker still, I have read stocker good till 400WHP, can anyone confirm or deny? I guess I need to order one and eliminate it being fuel pump. I know I am seeing injectors hitting 110-115% in EvoScan.

Fastone_evo6

you need a fule uppgread , watch out that enginge , so you dont spike

recompile

iTrader: (38)

Evo 8 fuel pumps are barley good enough for stock power. It should have been one of your first mods.

CurseDSM

iTrader: (3)

Yeah stock pumps will no where near handle 400 hp whoever told you that doesn't know wtf there talking about. 255 pump should have been a first upgrade as stated above.

djchopps0013

iTrader: (3)

Cool guys I am ordering one. I will report back after install.

djchopps0013

iTrader: (3)

stock fuel pump was issue. I replaced with walboro 255.