C5Z running rich at idle

[Z06nV]

i am trying to dial in AFR at idle and no matter how much fuel I pull using VE and MAF still running pig rich ~10 afr. i just got done installing A&A kit with the 80lbs DEKA injectors. I scaled the injectors based on the info FIC provides for these injectors. Min injector pulse width is set at 0.125.i am running out of ideas so give me some ideas guys.

I am attaching the latest changes and a log.

[Lakegoat]

I didn't see your wideband input---are you logging wideband? I would turn on STFT's and see what is actually going on and that will tell you exactly where your fuel should be. Pulling 20% is just a start.

[Z06nV]

wideband is logged. called MPVI.1 -> AEM- 4110

so got to reduce the min fuel to 0.002 and it seemed to help. go the AFR in the 14s now, however the STFT are in the -30s

[Lakegoat]

When you write the tune and start the engine, the STFT's will read wonky for a while. If you are able to drive the car slowly for a few minutes and then start logging, that would be best. If your STFT's are still way off, then you will need to adjust your MAF/VE according to your AFR error chart. After changing the tune, Be sure to go to scanner open special functions, Fuel, and reset fuel trims. Then restart the engine and do the above.

[Alvin]

i am trying to dial in AFR at idle and no matter how much fuel I pull using VE and MAF still running pig rich ~10 afr. i just got done installing A&A kit with the 80lbs DEKA injectors. I scaled the injectors based on the info FIC provides for these injectors. Min injector pulse width is set at 0.125.i am running out of ideas so give me some ideas guys.

I am attaching the latest changes and a log.

There are some min pulse witdth adders in the transient section of fueling that needs to be addressed with injectors that big.