[Diy_efi] Spark Plug readings

[Brian Renegar]

Uhh.  This is completely opposite of what I expected you guys to say.  I 
thought it was running super rich.  The plugs are black like carbon.  The 
fuel tables are set for very rich (about 10.8:1 commanded A/F ratio).  And 
I accidentally had the MAF transfer curve entered wrong (reporting too much 
air).  So I figured I fouled the plugs by running real rich.  I also have 
the timing backed off some to be on the safe side.

BTW, this is a 5.0L V8, twin turbo'd, running 9# of boost, on 93 
octane.  For all of the detailed specs, go 
here:  http://www.twinturbostang.com/mods.html

My wideband is together now though.  So hopefully that will shed some light 
on the issue.

Brian


> > jpg1 you detonating and burning oil
> > jpg 5 yr runnning very lean and detonation is
> > occuring.
> > jpg 8 severe detonation.
>
>Seconded. jpg 8 looks super lean and like there's some
>bits of piston stuck to it. :(
>
>-Kenny


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi