Don't try running your ZL1 on the dyno without the air filter or this will happen

[pjs]

Learned in school to set MAF only by disabling VE; engine/air flow/dynamic/High RPM Disable to something real low, e.g. 200. That course was for Gen III/IV but noticed my C7 is the same and the Magnuson tune set it for MAF @1000...

HTH,
Pj

[8850]

maf only is not the same thing as open loop

Tell us how Higgs.

[Higgs Boson]

Tell us how Higgs.

he asked how to set MAF only.
you told him how to set open loop.

that's not the same thing.

how to set open loop is already a discussed topic and on the forums. set the O2 sensor ready voltage to a low number, it even says in the tune file description how to do it......

[Ghostnotes]

he asked how to set MAF only.
you told him how to set open loop.

that's not the same thing.

how to set open loop is already a discussed topic and on the forums. set the O2 sensor ready voltage to a low number, it even says in the tune file description how to do it......

What about DFCO?
Shoulden't that disabled as well as like the older PCM's?

[Higgs Boson]

What about DFCO?
Shoulden't that disabled as well as like the older PCM's?

yes