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help: cis-e mixture adjustment
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i unplugged it with the engine off, but if i unplug one wire from the multimeter to the harness while it is running, the car will die. so i dont think that is the problem.
-tony
"Fenton, Shannon" <sfenton@amazon.com> wrote:This may help you out a little. http://www.scirocco16v.com/tech/fuel_mixture.htm Now when you unplug you DPR to put the harness in does the car stumble and try to die? If you can plug and unplug your harness and it makes no difference to the car I would say your DPR is hosed.
www.scirocco16v.com
-----Original Message-----
From: Tony Morehead [mailto:wolfsburg16v2k2@yahoo.com]
Sent: Friday, February 07, 2003 5:24 PM
To: list
Subject: help: cis-e mixture adjustment
i had $30 laying around one day so i bought the tt fuel mixture test harness. i found instructions online so i decided to see what was going on with my 1987 16v. my car has been guzzling gas lately and my high-rpm horsepower just aint what it used to be.
hooked everything up and started the car (allready warm), but the multimeter (digital, set on a 20mA scale) reads zero. let it set for a few minutes.....still zero. instructions say that zero means that i am way way too rich. i turn the screw counter clockwise less than 1/8th turn and the car starts to stumble, i back out the bypass screw on the tb to balance it a little. cars idling again for a few minutes.... still says zero. i even turned it down to the 2mA scale for an extra decimal place, but its zero there too. if there is a vacuum leak i cannot find it (most of my vaccum system is removed). the injector o-rings are not that old (maybe 12 or 14k miles). someone that has done this before please help me out. all i can do right now is turn the 2 screws until they balance out and the car will idle at a decent speed.
tia,
-tony
1987 2 or 3 tone 16v scirocco
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<P>i unplugged it with the engine off, but if i unplug one wire from the multimeter to the harness while it is running, the car will die. so i dont think that is the problem.
<P>-tony
<P> <B><I>"Fenton, Shannon" <sfenton@amazon.com></I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<META content="MSHTML 6.00.2800.1106" name=GENERATOR>
<DIV><SPAN class=967253401-08022003><FONT face=Arial color=#0000ff size=2>This may help you out a little. <A href="http://www.scirocco16v.com/tech/fuel_mixture.htm";>http://www.scirocco16v.com/tech/fuel_mixture.htm</A></FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=967253401-08022003><FONT face=Arial color=#0000ff size=2>Now when you unplug you DPR to put the harness in does the car stumble and try to die? If you can plug and unplug your harness and it makes no difference to the car I would say your DPR is hosed.</FONT></SPAN></DIV><!-- Converted from text/rtf format --><BR>
<P><SPAN lang=en-us><FONT face=Arial color=#0000ff size=2><SPAN class=967253401-08022003><A href="http://www.scirocco16v.com/";>www.scirocco16v.com</A></SPAN></FONT></SPAN> </P>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Tony Morehead [mailto:wolfsburg16v2k2@yahoo.com] <BR><B>Sent:</B> Friday, February 07, 2003 5:24 PM<BR><B>To:</B> list<BR><B>Subject:</B> help: cis-e mixture adjustment<BR><BR></FONT></DIV>
<P>i had $30 laying around one day so i bought the tt fuel mixture test harness. i found instructions online so i decided to see what was going on with my 1987 16v. my car has been guzzling gas lately and my high-rpm horsepower just aint what it used to be. </P>
<P>hooked everything up and started the car (allready warm), but the multimeter (digital, set on a 20mA scale) reads zero. let it set for a few minutes.....still zero. instructions say that zero means that i am way way too rich. i turn the screw counter clockwise less than 1/8th turn and the car starts to stumble, i back out the bypass screw on the tb to balance it a little. cars idling again for a few minutes.... still says zero. i even turned it down to the 2mA scale for an extra decimal place, but its zero there too. if there is a vacuum leak i cannot find it (most of my vaccum system is removed). the injector o-rings are not that old (maybe 12 or 14k miles). someone that has done this before please help me out. all i can do right now is turn the 2 screws until they balance out and the car will idle at a decent speed.</P>
<P>tia,</P>
<P>-tony</P><BR><BR>1987 2 or 3 tone 16v scirocco
<P><BR>
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