Low MAF Hz tune on Z06 Vararam

[Sébast19X]

Anyone could help me with the tune on especially low MAF Hz with the Vararam on C6 Z06 2008. Hi MAF are more easy to find on OL . If someone have do the job before me could you help me please.

Thank you
Sébast

[eficalibrator]

Force open loop full time with the temperature thresholds, then force MAF-only operation by setting the RPM threshold for steady state to below idle. You should then be able to take steady state wideband AFR error measurements and correct the bottom end of the MAF curve.

[HNK]

Greg,

Can you direct me to how you get to forcing the MAF-only op? is it under dynamic air?

thnx

Force open loop full time with the temperature thresholds, then force MAF-only operation by setting the RPM threshold for steady state to below idle. You should then be able to take steady state wideband AFR error measurements and correct the bottom end of the MAF curve.

[Sébast19X]

Force open loop full time with the temperature thresholds, then force MAF-only operation by setting the RPM threshold for steady state to below idle. You should then be able to take steady state wideband AFR error measurements and correct the bottom end of the MAF curve.

Ok Sir, thank you,
much appreciate

Can I do it with stft too ? I know that would be more accurate with my wideband, but i just asking if I could do this way too.

[RWTD]

Greg,

Can you direct me to how you get to forcing the MAF-only op? is it under dynamic air?

thnx

Real simple buddy. Do a search, and you'll come up with this:

http://www.hptuners.com/forum/showth...maf#post121675

"Pure MAF mode" = disabling the VE calculations within the pcm altogether. Basically, it prevents a "hybrid" use of both the MAF and VE system. To do this go to "General, Airflow, Dynamic Airflow", and set both High RPM Disable and Re-enable to 0. Now you have 100% MAF, just like a Ford.

I run MAF only mode on my '08 Z06, and it is bone stock (save for the tune), and even an '07 Z06 with an A&A Corvette I/C Vortech setup. I also generally run MAF only mode any GM vehicle that comes to me for custom tuning, depending, regardless of the modifications.

[Sébast19X]

Real simple buddy. Do a search, and you'll come up with this:

http://www.hptuners.com/forum/showth...maf#post121675

RWTD .... You never check my tune like we have discuss before ....

Later,
Sébastien