A question for you CIS(or and FI) gurus out there. Replaced the injector and it did not help

[lord_verminaard at yahoo.com (Brendan Doyle)]

I'd like to know what you find out on this.  I have a very similar problem with my CIS-E equipped 2.0 8v.  I'm probably going to swap fuel pumps either today or tomorrow.  I've swapped and checked every ignition component and my DPR is set properly.  At this point I'm about out of things to replace!

Brendan
84 Scirocco 8v
81 Scirocco 'S w/ 3A & 4k
01 Jeep TJ 4.0


----- Original Message ----
From: John C. Worden <johncworden@xxxxxxxxxxx>
To: scirocco-l@xxxxxxxxxxxx
Sent: Monday, May 21, 2007 9:08:36 PM
Subject: Re: A question for you CIS(or and FI) gurus out there. Replaced the injector and it did not help

Ok, I replaced the #4 injector and there is no difference.  Afterwards I 
also rechecked the DPR,
replaced the dist. cap and rotor and rechecked/adjusted the timing.  The 
thing still isn't right.
To answer some of the responses:
Michael- I didn't know it was a fuel problem, but ignition/spark is right 
on, so that was my next
area to look at(I should have included part of my email from a day or two 
ago that told of the
problem and what I had checked)
Tberk-I have looked for vacuum leaks and have not found any.  Doesn't mean 
I haven't missed one,
but I have looked thoroughly.
And for everyone that mentioned the airflow plate, it's bearings and the 
dist.  I can pretty much rule
that out because the plate responds very smoothly, and fuel increases as 
the plate is lifted.
Well I will take another look at the ignition section of Bentley tomorrow, 
it's possible I've missed something.

John

At 09:13 PM 5/20/07, John C. Worden wrote:
>I am trying to diagnose my 16V's acceleration problem that I can best 
>describe as a stutter.
>I have been through the Bentley's troubleshooting list and am down to the 
>injectors, fuel distributor,
>main pump and airflow plate.
>The plate looks good and moves smoothly.
>I pulled the injectors out and aimed them into four clear beer bottles, 
>each bottle weighed the same.
>I ran the pump and lifted the plate for full throttle for thirty seconds 
>and then weighed the fuel.
>Cylinders #1 through #3 put out 1.5oz of fuel with a nice pattern.  #4 put 
>out about 1.7oz with a
>half conical pattern.  Would the pattern not being a nice cone shape and 
>it putting out the extra
>fuel cause this?  I know it's not right, and am replacing the injector 
>after work, but is that off enough
>to cause a running problem?
>Any thoughts?
>
>
>
>John C. Worden
>Bucksport, Maine
>
>''98 Dakota 4x4-
>'88 Scirocco 16V-
>'86 Scirocco 8V-Now a 16V!
>'78 Scirocco Brazil Brown Metallic, 4 speed.- In the Rotisserie and under 
>restoration
>'89 Polaris Indy Deluxe
>
>
>
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