The injector signal sent from the ECU is more weighted towards RPM, AFM
position and coolant temp.  O2 is just a tweak, and I'm not sure the
O2sensor/ECU responds fast enough to influence the mixture through transient
response like acceleration.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Rocket J Squirrel
Sent: Wednesday, October 14, 2009 4:25 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Injector color question

Looking forward to hearing more about this.

The injectors are controlled by the ECU based on O2 so I'm guessing that
variations in flow rate -- within reasonable limits -- would be something
the ECU would be able to compensate for.

Full open throttle is a different story, I betcha.

My guesses only, I expect enlightenment from those who know these things.

--
Mike "Rocket J Squirrel" Elliott
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Westrailia: (Ladybug Trailer company, San Juan Capistrano, Calif.)
Bend, OR
KG6RCR

On 10/14/2009 12:06 PM Chris S wrote:

> I pulled the injectors from my DJ-code engine to replace them with a set
> from an MV-code 2.1L.  The original injectors were yellow, while the
MV-code
> injectors are black.  Is there a significance to this color?  Both engines
> are from 1989.
>
> I'm asking because now, although smoother, I feel there's a little less
> power when accelerating from 65 to 80 mph.  I thought maybe the black
> injectors had lower flow rates.
>
> --
> Chris S.
> Disclaimer: "Death and serious injury may occur"
>