MAF curve/transfer function
Posted: 2023 Nov 25, 22:26
I wanted to make a post on this topic because:
1: Using my wide band Lambda sensor helped my get 98% of the MAF curve dialed. My fueling is literally within under 2% error anywhere commanded (Lambse) in the base fuel table! (Obviously these results are only as good as my sensors accuracy)
2. More importantly, I had to use the factory narrowband O2 sensors to dial in the bottom 2% of the curve and that improved drivability down low considerably.
3. I hope this post helps someone else out who lacks experience and I am not sure if this is totally correct but has worked well.
I removed the wide band with confidence just to see how she ran and it is even smoother at idle. There is a variance of +4 between the two engine banks under closed loop conditions with the other bank reading 0 on the LTFT.
1: Using my wide band Lambda sensor helped my get 98% of the MAF curve dialed. My fueling is literally within under 2% error anywhere commanded (Lambse) in the base fuel table! (Obviously these results are only as good as my sensors accuracy)
2. More importantly, I had to use the factory narrowband O2 sensors to dial in the bottom 2% of the curve and that improved drivability down low considerably.
3. I hope this post helps someone else out who lacks experience and I am not sure if this is totally correct but has worked well.
I removed the wide band with confidence just to see how she ran and it is even smoother at idle. There is a variance of +4 between the two engine banks under closed loop conditions with the other bank reading 0 on the LTFT.