Date:         Wed, 12 Jun 2002 14:55:34 -0700
Reply-To:     Matthew Pollard <poll7356@UIDAHO.EDU>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Matthew Pollard <poll7356@UIDAHO.EDU>
Subject:      Tiico: stuttering when i step on the gas
Comments: To: Tiicolist@vgonman.com
Comments: cc: Vanagon-EngConv@yahoogroups.com
Content-Type: TEXT/PLAIN; charset=US-ASCII

More TiiCo stuff for you folks:
patient- syncro westy w/ a tiico engine. low miles. a2 fuel rail. timing
at 6 degrees, CO at 128.

symptoms: stuttering. When running 87 octane w/ the oxygen sensor
connected it runs like crap. Stutters if i accelerate too fast. Above
about 3.8K it is fine though. If i remove the oxygen sensor it runs
better, but still stutters when i accelerate too much. With premium gas it
is much worse- the bus is not even really drivable! This was happening
before and after the fuel rail conversion from 'stock' to an a2 rail. The
oxygen sensor was old from the transplant w/ unknown miles on it! Three
wire jobbie too.

Prescription? I can log the oxygen sensor data and look at it, but don't
always have a laptop to mess with (it's my wife's, what can i say?). Do we
suspect my timing is still off, or something else? BTW i am getting NO
knocks at all. Should i lean the mixture to say 100 instead of 128? More
stuttering w/ premium gas tells me the timing is still way off or my
mixture is way too rich. I never sniffed the tailpipe to measure the CO
though.

Suggestions appreciated.
Thanks
Matthew
86 syncro westy tiico

Matthew Pollard          "Racing with the wind and flirting with death
Dept. Of Chemistry        So have a cup of coffee and catch your breath"
University of Idaho
www.uidaho.edu/~poll7356