RE: What Air to fuel ratio should a 16v run . ?

[Chris Coracini <Coracin@usdl.com>]

>
>
>	Well I have my gauge in and took it to my dads friends shop where he wheeled
>out some computer on wheels and proceded to harrass my motor with it. . .
>Well
>we found out that the gauge is pretty much on the money . . . even though it
>reads the signals at weird rate. . . 
>	Anyway we found out my car runs rather lean  . . . and at full throttle with
>the switch working properly I run 14.7:1 sometime 14.3:1 . . .
>	Anyway He told me to make the motor run rich . .  or basicly run Ideal mid
>to
>low 14:1 at idle . .  Now he's more a mustang man so i don't know what I
>should do . . 
>If I run mid 14:1 won't it be extremly rich when the full throttle switch is
>on . .
>	I'm just nervous I don't want to grenade my motor or shoot anymore flames .
>.. 
>Which Bloody happend again when my car is running extremly lean. . . 
>Go figure. . 

with your system running closed-loop, it will always be around 14.7:1,
that's what the O2 sensor is supposed to do.  when the full throttle
switch is engaged, THEN it's supposed to get rich.  yours is staying the
same.  first check to see if the switch is engaging.  if it is (and it's
working), maybe you need one of those hack job enrichment devices?  max
power is at about 13:1.  i think this is the best way to do it, that
way, everyday driving you would have ideal stochiometric ratio for a
balance of economy, power, and low emissions.  when you floor it,
mileage and the environment be damned!!  and you can't blow up your
engine from being too rich, only bog it down.  too lean is much worse.

chris
86 16V scirocco

>

--
To unsubscribe, send "unsubscribe scirocco-l" to majordomo@scirocco.org.
If you experience other problems, email: scirocco-l-probs@scirocco.org