Hi,

I have a stock 2015 Sierra Denali 6.2 with just an SBJ filter and have started upgrading it on E85.

To begin with , i am in France , and it is difficult to find competent people in this field. I installed the sensor under the vehicle and active with HP TUNER and replace the table that's it.

Can someone look at my log and help me because i'm having a hard time starting cold , it's starting to be 5?C (41?F)sierra apres flex alcohol multi 1.25.hptessai 70%.hplsierra apres flex alcohol multi 1.25.hptessai 70%.hpl in the morning.

I come to you because i am a novice and i don't want to do anything stupid.

Thank you for your help.