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

[Huw Powell]

> 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/