my tune think its running a little rich

[GOODIE454]

can someone look at my tune. i think it is running rich it was set up to run speed density the motor is a 2003 6.0 its drive by wire with a Texas speed 220/220 cam .581 .581 lift. running a th400 trans. im new at this tuning stuff and this is one that was written for me by a local shop just want to make sure it all looks good. truck runs good, plenty of power just smells a little rich to me.

10154

[WeathermanShawn]

GOODIE454, welcome to the Forum:

That Tune you posted is not a SD Tune. It is a MAF-enabled, closed-loop tune.

Therefore, you should be running stoich (~14.7 AFR)..

[Chevy366]

If you are running the ORY and headers without CATs it will smell a little rich , be aware without CATs it can be lean and smell rich .

[Sid447]

GOODIE454, welcome to the Forum:
That Tune you posted is not a SD Tune. It is a MAF-enabled, closed-loop tune.
Therefore, you should be running stoich (~14.7 AFR)..

If I'm not mistaken,

you might find that if the vehicle has the maf-sensor physically removed it will be in SD, has LTFT disabled, but is not fully OL.

HSV had their stock GTS single-spark SDCL tunes set up with the Maf Table like this (by NOT altering the maf frequency fail tables C2901,2 or 3 at all) this way you can choose to connect and run "maffed" at will).

Very strange B3605! :)

Yes you will be running rich, because of the way the tune is set-up.

[WeathermanShawn]

Sid, I disagree.

He is running MAF-Enabled closed-loop.