Differential Pressure Regulator[was No start WAS: Fuel Distributor Connectors]

Ben Swann benswann at comcast.net
Tue Feb 3 03:19:52 EST 2004

I assume we are referring to the Differential Pressure Regulator.

The CIS-E unit can be exchanged with CIS-EIII as they are the same part (at least according to CIS-EIII Factory Service Training manual).


[Date: Mon, 2 Feb 2004 13:39:42 EST
From: SuffolkD at aol.com
Subject: Re: No start WAS: Fuel Distributor Connectors
To: quattro at audifans.com, mboucher70 at hotmail.com, antar at comcast.net
Message-ID: <8e.262956c.2d4ff36e at aol.com>
Content-Type: text/plain; charset="US-ASCII"

I have no real correct answer to what it does except equallize pressure.
When mine went it was from a slow clogging which became intermittent.
Totally disabled the car.  If I could drive it back to MA from FLA I could do 
no more than 25MPH and the raw fuel backfires melted the rear bumper cover.
Swapping that two screw thingy SOLVED the issue and was ALARMINGLY a night an 
day difference.

Only info I could find was in a Bosch CIS book about it. (had no Bentley) and 
the first  one in the junk yard was BAD.
Cross references ared VW 5 cylinder ones.
I have NO idea if one from a 4cyl works in a 5cyl.
so go for a direct match.
HTH - Scott by BOSTON]

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