burnt valves, weak coil, exorcism. What will fix my car?

[brianm@zbt62.eastnet.gatech.edu (Brian McGarvey)]

have you checked your FI o-rings..
brian

On Mon, 18 Mar 2002, Dan Miller wrote:

> I have a 1988 16v rocco with 116 grand on 'er.  The car starts DECENT but=
 not right up.  The idle is finicky-the tach seems to be having a siezure a=
t idle, moving up and down about 1/16th of an inch about 5-8 times a second=
-and sometimes the engine cannot find idle.  300 rpm-1200-300-1200 etc.  Th=
e engine also misses-almost seems like 1 of the 4 cylinders isnt firing reg=
ularly.  but this is not a constant problem.  it is intermittent.  sometime=
s the engine runs fine-below 4 grand- and sometimes it runs, well, worse th=
an a 3 legg=E9d dog.  The engine almost always just sputters above 4 grand,=
 but sometimes pushes through it and revs all the way to the orange.  here =
is a complete list of the parts i have replaced and the tests i have done:
>
> REPLACED: fuel filter, coolant temperature sensor, thermotime switch, ign=
ition control module, lambda sensor (OXS)  and control unit, BOTH fuel pump=
s, plugs (many times- the car loved to load em up b4 i replaced the o2 sens=
or), wires, cap, rotor.
>
> TESTED:  differential pressure regulator, hall effect sender, idle air re=
gulator, idle and full throttle switch, compression, timing, timing advance
>
> there are no vacuum leaks and no bad grounds.
>
> I have done a resistance test on teh coil as per bentley and the numbers =
were dead center.  Does this mean the coil is DEFINATELY good?  or can a co=
il start to fail at high RPM's or be weak? Also, i have a friend who had si=
milair problems on his car(1974 superbeetle), and found it was a single bur=
nt valve.  Has anyone had any experience with a burnt valve in a 16v rocco?=
  i am running out of parts to replace that could fix the problem, and runn=
ing out of parts to replace, period.  Not to mention my left asscheek is st=
arting to hurt because the padding in my wallet is getting thin.  If anyone=
 out there can contribute a helpful word, HELP ME PLEASE!
>
> thinknig of giving up and selling car to junkyard,
> Dan Miller
>
> if i shoot my roocco between the headlights, will it roll over an dlook l=
ike this?
>     o                            o
> [ X ][ X ]=3D=3D( x )=3D=3D[ X ][ X ]
>
>
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