View Single Post
Old 10-19-2017, 03:21 PM   #64 (permalink)
Z_ealot
A True Z Fanatic
 
Z_ealot's Avatar
 
Join Date: Sep 2010
Location: Albuquerque, NM
Posts: 2,045
Drives: 09 370Z Touring/Sprt
Rep Power: 10091
Z_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond reputeZ_ealot has a reputation beyond repute
Default

Quote:
Originally Posted by Jhill View Post
All cars use the AF sensors for fuel trim. The mafs + rpm determine what cell on the map the car is in and the AF sensors give the feedback to verify the AF is matching the desired AF. What I was talking about was Nissan in the oem data does not list or use stft or ltft it uses that alpha data, something a bit foreign to me but I guess it’s like a combo of both.



Can’t say for Nissan but in my experience AF sensors don’t “age” and get lazy like a classic o2 sensor. If it’s way off you can use the rear o2 vs front AF readings to see if something is up.


Any best method for testing with the rear o2’s?


Sent from my iPhone using Tapatalk
Z_ealot is offline   Reply With Quote