[HELP!] The continuing saga of Daun's poor running '80 Scirocco

[skerocdriver@juno.com (Shawn C Meze)]

On Thu, 18 Apr 2002 06:39:39 -0700 (PDT) Daun Yeagley <vwdaun@yahoo.com>
writes:
>In the never ending process of trying to get my '80 to run
>right...
>
>Current setup:
>1.8 RD, electronic ignition, CIS basic. (No O2 sensor.  For
>those who might remember, I've swapped the correct fuel
>distributor back in that has no provisions for the
>frequency valve.)


How about the warm up regulator? if its going bad it can give the same
symptoms but usually goes away after its warm. 


>Typical behavior:
>Cold start, idle is extremely low - around 400-500 rpm. 
>Revs ok but hesitates under load.  The hesitation decreases
>as the car warms up (but still remains) and the idle comes
>up to normal - about 900-950 rpm.  Bahaves somewhat like a
>vacuum leak but I've not been able to find any.  (Any
>thoughts on some 'not-so-common' vacuum leaks sources?


One of the biggest overlooked vacuum leaks is the intake manifold. I put
a wrench (hex) on the bolts every now and then. You might be surprised
what you find. Check it. 
Otherwise you might want to do a grand'e intake boot removal and
carefully inspect every inch of it. while that's off look at the rest of
the vacuum lines as well as the 5th injector. it can be a source for a
leak. 

I would suspect a rich fuel system too. Just cuz.

Otherwise, take a can of carb cleaner and lightly spray the ends of
vacuum hoses. Thats just another way to troubleshoot a vacuum leak.
Listen for an rpm change. 


>Another peculiarity to this thing.  Brake usage causes the
>rpms to rise.  Pumping the brakes gets a good 300-500 rpm. 
>Brake booster bad?  And since I suspect vacuum problems,
>could this have anything to do with the other poor running?


This is normal sweet cheeks. (Im gonna miss you at ND this year. ALOT.)
Focus on the other 2 areas. You'll finger it out. 


Shawn Méze
86' Jetta GLi 8V   88' Corvette -SS 30- 2001 SDR Solo2 Champion
82' Scirocco GTi -FSP 54-   79' "Project FSP Scirocco"  84' Scirocco 8V
The Fastest, Quickest, Cleanest and best looking Scirocco(s) in all of
San Diego!
http://www.Geocities.com/MotorCity/Speedway/1308/index.htm


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