[vadonchez]

Hi

Just to compare, here is a log from my cold start with "noise reduction ON" in MHD:




As you can see, my AFR falls into 10 area too then DME decrease STFT in order to keep AFR @14,7 target.

Only difference is that on my car both AFR reach 10 and both STFT are decreasing where in your log only bank2 is concerned.

I don't know why but it's like if the DME was in open loop at the beginning and then it goes into closed loop then lambda value is taken into account and STFT began to adjust fuel to reach AFR target....Then the LTFT takes over and STFT fall into 0 area....

[string_money]

Originally Posted by JustDriveIt

There seems to be more and more posts in the "General MHD" thread of people asking to have their logs read. I figured a separate thread for this would be a good idea.
I think it's awesome we have a community willing to help each other out and we certainly have some experts here that are good at looking at logs.

If someone is willing to add a post about the "general rule" when looking at logs (like what to look for - timing, boost, lpfp, etc.) I think that my also be helpful.

Hey all, been getting a high gear, high load misfire. Often results in "combustion misfire" in cylinder 3/4/5/6. Seems random between them all. Took a log today and leaned the f out it looks like. Can't tell if this is my HPFP, LPFP, Injectors, or what here. HPFP was replaced under warranty by previous owner. Can anyone take a look?

n54
85k miles
FBO
MHD stage 1
Index 7/8 injectors
New Sparkplugs

https://datazap.me/u/135igarrett/misfire?log=0&data=3-4-7-10-11-16-17&mark=50