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

[Sir_Rocco@veedub.com (Dan Miller)]

I have a 1988 16v rocco with 116 grand on 'er.  The car starts DECENT but n=
ot right up.  The idle is finicky-the tach seems to be having a siezure at =
idle, moving up and down about 1/16th of an inch about 5-8 times a second-a=
nd sometimes the engine cannot find idle.  300 rpm-1200-300-1200 etc.  The =
engine also misses-almost seems like 1 of the 4 cylinders isnt firing regul=
arly.  but this is not a constant problem.  it is intermittent.  sometimes =
the engine runs fine-below 4 grand- and sometimes it runs, well, worse than=
 a 3 legg=E9d dog.  The engine almost always just sputters above 4 grand, b=
ut 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, ignit=
ion control module, lambda sensor (OXS)  and control unit, BOTH fuel pumps,=
 plugs (many times- the car loved to load em up b4 i replaced the o2 sensor=
), wires, cap, rotor.

TESTED:  differential pressure regulator, hall effect sender, idle air regu=
lator, 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 we=
re dead center.  Does this mean the coil is DEFINATELY good?  or can a coil=
 start to fail at high RPM's or be weak? Also, i have a friend who had simi=
lair problems on his car(1974 superbeetle), and found it was a single burnt=
 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 runnin=
g out of parts to replace, period.  Not to mention my left asscheek is star=
ting to hurt because the padding in my wallet is getting thin.  If anyone o=
ut 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 lik=
e this?
    o                            o
[ X ][ X ]=3D=3D( x )=3D=3D[ X ][ X ]


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