Gtp Afr ?

[Shazbot]

I have seen many people say an AFR of 11.5 - 12.0 should be commanded on a GTP. I understand that my actual AFR may be different than what I am commanding and that I cannot verify without a wideband. Would it hurt to change my AFR from 14.7 to 11.5 or 12.0 at this point in time?

Any advice or direction here would be great.

Thank you.

[Bill@HPTuners]

Even in stock form your WOT commanded PE should NOT be commanding 14.7:1.

If your referring to stoich, NO you should NOT change your stoich afr table and I don't know of many that have done this & to this day still don't know why you would.

[UR50SLO]

Only at WOT will you need a AFR of 11's. Normal driving you can run 14-16afr depending on timing/load. If you had a real wideband you'd see it dance in the 14.4-15.4 range while driving. At WOT it should hang in the low 11's.
Invest in a wideband before making changes that could destroy the engine!
~Scott

[Shazbot]

Only at WOT will you need a AFR of 11's. Normal driving you can run 14-16afr depending on timing/load. If you had a real wideband you'd see it dance in the 14.4-15.4 range while driving. At WOT it should hang in the low 11's.
Invest in a wideband before making changes that could destroy the engine!
~Scott

I was dumb and bought the standard interface, I should have bought the pro, now I have to upgrade I like the idea of having my AFR directly in the tuner. Will be a good time to do it this winter, my car is officially out of commission until Spring starting tomorrow.

[UR50SLO]

It's nice to have it log right in the same program but not required. I run a AEM wideband in the Typhoon and the Jimmy. I can see what changes I make right on the wideband gauge. My HPT has the inputs where I can log if I want to.
I use Tuner Pro on the Typhoon with Code 59. It runs right off the wideband! Not bad for a 92 ecm
~Scott