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Re: General tuning question - fuel economy
In a message dated 6/13/00 3:10:46 PM Eastern Daylight Time,
smarteney@xlvision.com writes:
<< e the O2 sensor, hence gas mileage goes down. How do I compensate, or
can I? I noticed there are some Hiway mode parameters, such as Hiway spark
add (?), in the 165 ECM that I could take advantage of. Or, is the only way
to get better mileage mean changing the target AFR? >>
In my GN, I run 16.2:1 Hiway mode AF ratio and in the lower load sections of
hiwat Mode Spark Advance, I added 4* timing. Added 3-5mpg on the highway,
depending who of my friends you ask
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jim Testa TType86 on
#BuickGN
ASE Master Technician
buick.fiendish.net:6667
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