View Single Post
Old 01-08-2010, 07:18 PM   #8 (permalink)
mwebb
Master EcoModder
 
mwebb's Avatar
 
Join Date: Jul 2009
Location: New York
Posts: 510

no nickname , it's just a car - '04 volkswagen golf tdi
Thanks: 2
Thanked 101 Times in 74 Posts
fuel trim
short term fuel trim
long term fuel trim

LTFT is adjusted to keep STFT bouncing or cycling on zero
equal amounts up and down

if LTFT gets past a certain value , the system codes for rich or lean condition depending

if MR MAF sensor reports incorrectly LTFT adjusts to keep system at stoich to the limit described above

  Reply With Quote