now SC'd

[Stevo3]

Havent had time to update on what I tried to do as I explained up above. I did get a chance to try out that home made injection through those 2 extra ports on our throttle bodies and there just wasnt enough suction to get the water to go through. Dont want to cut/drill a hole out in the intake tube so I just scrapped that idea.

Maybe Ill look into the stuff that you guys linked and try that out. Or find a kit on ebay or something.

Still getting ping between 5 and 0 vacuum . Not getting ping anywhere else though.

[paddlenbike]

It's pinging pre-boost?

[^VooDoo^]

Fuel Pressure regulator not closing up fast enough?
Does the OBD2 systems use varible speed fuel pumps?, Might be taking to long to bump the line pressure.

Look into a adjustable FPR, One that supports top and bottom end control.

[Stevo3]

Yeah ping pre-boost. Its not doing it now as it is cold ouside for once. But, If I take off the split second ecu it doesnt ping.

I have messed with the timing on the split second in and out within those ranges on the map. Doesnt change. Talked to Gadget a few months ago, and he told me to set those ranges back to 0 for being a stock setting. Still pings.

[paddlenbike]

Are you sure you are writing those changes back to the Split Second ECU? If you're getting pinging in vacuum it would do it whether you had a supercharger or not, which makes me think you either have a carbon build up in the combustion chambers or your timing maps are not being written to the ECU.

[MTL_4runner]

Are you sure you are writing those changes back to the Split Second ECU? If you're getting pinging in vacuum it would do it whether you had a supercharger or not, which makes me think you either have a carbon build up in the combustion chambers or your timing maps are not being written to the ECU.

X2

I agree, sounds like either the changes aren't being made to the ECU (sounds likely since once you take it off, the pinging stops) or you have some heavy carbon buildup (which a water/meth system will clean perfectly for you).

[Stevo3]

Paddlenbike, it stops pinging once I take off the ECU, not the S/C. As for it writing to the maps, yes it is. Gotta also remember Im driving in 110+ degree weather. In cold weather it doesnt ping.