Can someone help? Fw: 16v troubles update...

["Alex Ting" <alex@millenniumsolutions.net>]

hey all,

this is sorta non-roc related, but this guy has a gti 16v and is having
problems and he's being forced to drive a (god forbid) Integra.....

Can someone provide suggestions?

thanks!

Alex Ting
Account Mananger
Millennium Solutions Group, Inc.
575 Menlo Dr. #4
Rocklin, CA  95765

Phone:  888.801.2001 ext. 228 or 916.630.2001
Fax:  916.630.2000
email:  alex@millenniumsolutions.net

-----Original Message-----
From: Robert Mangas <porter_t_dog@hotmail.com>
To: enorvell@bellsouth.net <enorvell@bellsouth.net>;
alex@millenniumsolutions.net <alex@millenniumsolutions.net>;
des10@ix.netcom.com <des10@ix.netcom.com>; bxr140@psu.edu <bxr140@psu.edu>;
aviation@wtd.net <aviation@wtd.net>
Date: Friday, April 30, 1999 5:08 AM
Subject: 16v troubles update...


>    Hi!  Installed the o2 sensor yesterday as planned, and now my
>car runs perfect (-ly horrible!)  The bad stumble off idle is back and is
>without doubt tied to the o2 sensor in some fashion-  Hook up the sensor,
>bad stumble, unhook sensor, hesitant but not stumbly.  So, learned
>colleages, What Does It Mean?!
>
>   One thought:  It points to a fueling problem, because the car runs
>better in open loop mode.  No o2 sensor signal, the brain switches to a
>richer map for safety.  Richer mixture, no bad stumble.  Hook up the
>sensor and the mixture leans out.  Leaner mixture, bad stumble (really bad-
>near stall, intake boot gets sucked down, then POP! and it runs again.
>Again, this happens off idle with an agressive throttle opening)
>    But:  If the mixture does lean out, why doesn't the lambda computer see
>this and Take Steps?  Also, my buddy Aaron the powertrain engineer thinks
>that especially on the earlier cars the system should go open loop
>automatically during a 'stab throttle event'.  (Personally, I love a good
>stab throttle event...)
>
>   Obviously, there is an interesting bit of data here, but I don't know
how
>to interpret it.
>
>   I have a fuel pressure gage on order.  I intend to run through the
>electrical tests this weekend.  Today I am taking the day off from cars to
>drink beer and clean the kitchen.  Have good weekend, and think about me
>driving a ratty (dis-)integra instead of my snarly silver gti.
>
>Thanks,
>Robert
>
>
>_______________________________________________________________
>Get Free Email and Do More On The Web. Visit http://www.msn.com
>


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