CIS starting problem

[bkpros@shaw.ca (Big Kid)]

Probably a faulty ignition switch.   I had the same problem on my 81
Scirocco S.  It would start but would die when I stopped turning it over.
Kinda had to wiggle the key position to find contact.   Maybe try running a
wire from your positive on the battery to +15 on your coil, if your ignition
and pump start humming then you probably have a switch problem.

Hope this helps.

Nate
82 Custom 88"Shovelhead Harley Davidson
81 Scirocco S 1.8l
87 Scirocco 2.0l 16v
72 Westfalia
80 2.2l 16v turbo mk1 Scirocco(project. soon finished)

----- Original Message -----
From: "Doug C." <cdczajka@msbx.net>
To: "Scirocco List" <scirocco-l@scirocco.org>
Sent: Thursday, December 12, 2002 11:29 AM
Subject: CIS starting problem


The car in question here is the 88 cabriolet (quickly becoming a
headache...just bought it less than 2 months ago and already had to replace
the alternator, and now this mess...), anyway the car would not start last
night.  It cranks fine, so it's not the battery (has 12.7V so it's fine).  I
haven't checked for spark yet, but i don't think that is the problem because
everything from the coil forward is brand new.

Here's what i have checked.  When i turn the ignition on, there is no
audible hum from the fuel pump.  Pulling the relay and jumping terminals
87+30 also yeilds no hum from the fuel pump.  A check of power at the fuel
pump relay terminals 2 to ground and 4 to ground reveals 12V so the relay is
getting power.  A check from terminal 2 to 1 and 4 to 1 gives 12V so the
relay is grounding fine.  So i'm suspecting the fuel pump is shot...

Now when i try to start the car it will stay running as long as i hold the
key in the start position and give it gas (At which time I can also hear the
fuel or transfer pump humming).  As soon as i cease either of these two, the
car dies again.  So i'm thinking the fuel pump is shot and the humming that
i hear when cranking is the transfer pump.  Is this possible/plausible?

I haven't checked the cold start valve yet or the thermo-time switch because
i don't have a helper until later tonight when my girlfriend gets home :(
(same reason i haven't checked for spark).

Any Ideas or Confirmation of a bad fuel pump or what else i should check?

Thanks!

Doug C.
'88 16v
Asheville, NC




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