[Diy_efi] RE: Diy_efi digest, Vol 1 #413 - 12 msgs

Erik Jacobs emj14 at columbia.edu
Tue Dec 17 19:52:50 GMT 2002


> Which is why I don't use an O2 sensor of any sort for
> tuning on a dyno.  While it is a fine toold for what
> it is, it cannot give nearly the depth of data that a
> four-gas analyzer can.  It won't indicate rich or lean
> if the timing is not optimal.  In fact, with training
> in what to look for, it is possible to see when a
> single cylinder is rich or lean from the rest
> (although you cannot tell which one unless you have
> probe ports in each runner of the exhaust manifold.

a) how much is a four gas analyzer?
b) is they a diy_fga list or something?
c) why do most tuning places seem to use wbo2 over fga?  price? ease of
use??

Can't you figure out if timing is optimal by EGT to a certain degree? (i
havent been following the thread)


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