The final details are the hardest part of the engine installation. I agree
that the oxy sensor should not be connected on a new engine you can load up
the exhaust with raw fuel just by making oil pressure if your injectors are
squirting. The increased fuel mileage Marc is experiencing could be a clue
that the engine is very lean or the fuel pressure is low not at idle where
most would check it but at speed. The possibilities are almost endless and
Marc needs to start at the beginning and do the basics timing, compression,
tuning then move on to the next level pin testing the harness, setting the
valves and exhaust gases.  I have seen a air fuel ratio meter for $300 and
this would be a huge benifit and eliminate the guessing
good luck Marc let me know if I can help you

Bob Donalds

----- Original Message -----
From: "Bob Stevens" <mtbiker62@HOTMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, February 15, 2005 12:59 AM
Subject: Re: Boston Bob Big Valve Update? Not really... (LONG)

> Different engine, but very similar symptoms on mine one time on a long
> hiway
> trip. I stopped, disconnected the O2 sensor, and it ran just fine from
> there
> on. I reconnected it a week later and it's operated just fine since, but
> that was the variable that made the difference when I lost power at speed,
> and the more I pressed the accelerator, the slower it wanted to go, until
> the O2 disconnect.
>
> bob
>
>