Stock fuel injection / 034 EFI

[Marc Swanson]

> Marc just got his car running,
> but as he tweeks it over time, he'll find that he can get very good
> performance regardless of when the closed loop programming is enacted.  In
> my car, I have it go into closed loop after about 10 seconds.

Definately, I'm not saying that my car is perfectly tuned yet (FAAAAR from
it), I was just replying with general comments on the idle control.  Even
if/when I get my car perfectly tuned there is still nothing currently in the
ECU to prevent somewhat annoying RPM fluctuations when the radiator fan comes
on.  Another issue with no idle control is that there is no way to easily and
precisely set the idle speed iteself.  Currently I can only do this by
adjusting the slide screw on the CIS warmup valve I'm using which is anything
but precise ;-).




> Well, if the CIS system is maintained, the stock ISV system should work no
> problem (which is really what the system was designed for anyway
> initially).

but who wants to keep around all the electronics for two fuel systems? :-)
My goal was to go for a clean installation which is why I went with the
ignition half of CIS III only coupled with the 034 fuel computer.  People
that want to precisely control the fuel metering in their engines might also
want precise idle control.


> Now, the Aux air valve also works quite well for cold starting
> and warm idling, the only problem with the air valve is when I have the
> lights on and the rad. fan simultaneously.  I've considered adding a small
> air valve to open when the radiator goes on to correct this.

It just seems a bit silly to mess about with such manual and "linear" air
valves on a car with a programable ECU.

> The next version of 034 will have an additional driver for ISV,

cool, will you offer any kind of a trade-up program?  Will this be the same
release as the 034 ignition component?

> however, or
> an additional driver can be purchased for about $200 that can be programmed
> to control idle settings.

from where?

>  Problem is, adding ISV control required another
> driver, and that "drives" up cost too, not just the ISV  =)

I know the main pricing problem is that 034 is fairly low volume, but as a
comparison the SDS EM-3D goes for about the same $$ and has an output to
drive an ISV.

Now, all that said, 034EFI is a great system and I look forward to tuning the
car as time permits!


Later

-Marc-
87 4ktq
88 90q