[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
On 10 Jul 97, WALTEE wrote:
> > Dont drop it! tis yuour Brain!!! or the ECU for the FI system and no matter
> > what anyone says its the most reliable part of the FI and will only fail if
> > something REALLY dumb, like putting the battery in backwards, is done.
> I hope I don't start another great "Type-3" controversy, but I had
> heard differently about that connector. My Notch has the same
> hookup, but the car has dual carbs, so it can't be for FI. I was
> told that it is the hookup for the diagnostic computer that VW had
> at their shops. As the tuneup specs got tighter because of emmision
> controls, the computer would give more specific parameters than just
> setting dwell, advance, etc. I have never had mine hooked up to a
> computer, but I don't want to cut it out either. David Walters '73
> 1600 Notch S. Florida, USA
The original post mentioned using a phillips screwdriver to get at
this "box and umbilical." The computer analysis connector requires
no tools to get at so I think Keith is correct. Perhaps the original
poster can confirm whether this box was above or below the engine
hatch cover. The FI brain is above.
VW started the computer analysis connector in the 1971
models, it actually has no connections to the FI and gives you very
little info that is not available elsewhere. I have a little box
that I once built that plugs into this. From here I can:
turn on the ignition
start the car
turn on the left and right turn signals
turn on the parking lights
check the AT kickdown solenoid
check the fluid level in the battery
(if only I still had one of those special batteries that were last
made in about 1978)
attach my dwell meter
The VW "computer" could also measure charging voltage and cranking
current and it would drive the timing light, but all in all it was
not very useful. I do like being able to adjust the dwell alone
because I can run the starter from there, but because of changes
that VW made, this feature only works on the 71-2 cars.
Jim
---------------------------------------------------------------------
Melissa Kepner Jim Adney
jadney@vwtype3.org jadney@vwtype3.org
Laura Kepner-Adney
Madison, Wisconsin
---------------------------------------------------------------------