Frustrations set in.. prematurely? (SAME 84 start issue)

[Ben Swann]

In short - wont work. 

CIS metering head very different than CIS-E.  Really there is no interchengeability
whatsoever.

Howewver, CIS-e  should be easy to obtain.  I have some.  Probably the only thing that
you would want tin swap is the DPR or fuel pressure regulator.

Ben


[Date: Mon, 16 Aug 2010 14:13:49 +0000
From: Alan Pritchard <alan.pritchard at rm-electrical.com>
Subject: RE: Frustrations set in.. prematurely? (SAME 84 start issue)
To: "quattro at audifans.com" <quattro at audifans.com>
Message-ID:
	<08F0D60C28E94A49AE73F0BEF8807238103550B3 at E14-2.rm-electrical.com>
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Just lurking around and read your message.
Have you got access to fuel pressure gauges? My first thoughts were you have fuel
leaking back from the injectors. However you said you can shut the car off and the
problem will be there almost immediately. So it sounds like something which rectifies
itself given time? Ie building fuel pressure? Been a long time since i worked on a CIS
car, but as i remember there are several components which control pressure in the
system. Have you tried using the metering head of your urq? It doesn't take a great deal
of time to swap? My gut would be to swap the metering head inc injectors and the
regulator which sits on the side of the side of the block and use those parts to isolate
the exact problem, sure the metering wont be spot on but you'll be able to narrow down
the faulty area easily. Have you checked fuel delivery to the metering head? Ie damage
pump-filter-pipework and return pipes, although damaged return pipes should only result
in over pressure in theory.
Another point, you say the problem is most obvious on starting, could there be something
wrong with the cold start injector? These are all parts you should be able to swap
quickly from the urq imho.

Alan Pritchard  | Network Administrator]