EFIDynoTuning Forum

Yeah having a hard time finding just the pump without the assembly.

thanks, that said where do you source the pump itself? I assume I will be just replacing the pump and keeping the rest of my stock assembly.

Do the old SD ECUs have PWM fuel pump control? if not will the coyote fuel pump work without it?

Other recommendations?

J1X is fully broken out but the ADX still has some minor issues. It would be a good learning tool while you are finishing your build.

FYI this gasoline tune is rough as its not my daily tune. Just working on getting the gas tune dialed so I can switch fuels on the fly if E85 is not available.

Thanks, here are the current files I am running. Having trouble dialing in transient fuel and AE still

Not sure what could be causing this. I have always noticed a lean out period every 30 seconds or so. Is this normal or an issue with my tune? Black line is O2 Voltage.

This is great information, thanks!

I found the sub in my bin just trying to discern if the target lambda is modified to account for the extra air when injected upstream. Looking at the code you posted do you know what Sub_4a1e is?

Is anyone aware of any functions that exist for Smog Pumps? I recently hooked up my air injection system as am due for inspection. It made a noticeable difference in off idle behavior. I'm curious about breaking out any functions that may exist. Is there anything documented?

I believe this would only effect the Key On Engine Running self test and make no difference during normal operation.