cis-e help!! [NG CIS-E3]

[Brendan Walsh]

So my correct course of action would be to check the temp sender to be 
sure(yes i have a bentley+Jan Pinkowish sent me the spec and chapter), and 
then move on to the injectors, fuel pump &check valve etc... since i get no 
real pressure at the lines (No quick release, maybe a drip or two), except 
the csv line. I just find it odd that it only gets pressure at the csv. Oh 
well guess i wont know till i start pulling it apart and testing bit by bit. 
Thanks to all for you help/suggestions/comments, special thanks to Huw for 
your expertise. I let you all know how it turns out.

regards
Brendan

>From: Huw Powell <audi at humanspeakers.com>
>Reply-To: audi at humanspeakers.com
>To: "Brendan K. Walsh" <bkwalsh4201 at hotmail.com>
>CC: quattro at audifans.com
>Subject: Re: cis-e help!! [NG CIS-E3]
>Date: Wed, 31 Dec 2003 21:29:10 -0500
>
>
>>As for the car's exact behaviour from start, It will not idle on its own
>>until the car is hot, which takes a few minutes.
>
>Then it is definitely absolutely not the CSV that is stopping it from 
>running.  That injector only sprays fuel for a few seconds.
>
>>I went over the vacuum sys
>>pretty thoroughly ans i can't seem to find any leaks. the fuel pump is 
>>noisy
>>but it makes good pressure, the lines aren't leaking. Oh, speaking of 
>>lines,
>>the line to the csv has good pressure, fuel squirts like crazy when i 
>>crack
>>the fitting, but the main five injectors don't seem to get much (leaky
>>injectors, bad check valve or accumulator maybe?) Were ok last time i
>>fiddled with the car, now nada.
>
>Well, with the airplate not lifted (and FP not running) all there will be 
>in those lines is a bit of residual pressure, below the injector opening 
>threshold, and only as much fuel as is in the line itself.  So all you 
>should get is a quick release of pressure.  Though, there should be some.
>
>>>On the car originally in question, it might make sense to test the CIS
>>>temp sender in ice and boiling water to see if it still works right.
>>
>>On this, i pull it off the car and check resistance, right? Any guidlines 
>>on
>>values i should look for?
>
>Um, yes, not that I can remember offhand.  It will be in the Bentley shop 
>manual, though.  You do have one, right?
>
>>Also i looked at a parts catalog last night from europartsdirect.com, the
>>CSV from the cis-e and e3, have different part no's. BH007190  For the 
>>83-87
>>coupes and BH007206 for the 87.5's. Is it possible these two parts have a
>>different voltage range, so that even if the temp sender is ok it doesn't
>>hit the range the injector needs to open?
>
>Not voltage, but perhaps they are designed to produce the "right" amount of 
>fuel at different pressures, guessing by the way they are hooked up 
>differently.  But this part is not your problem.
>
>--
>Huw Powell
>
>http://www.humanspeakers.com/audi
>
>http://www.humanthoughts.org/
>

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