I grounded the shielding from the O2 sensor wire to the body sheet metal under
the back seat, near the control unit.  I don't know if this was correct or not,
but the vanagon seems to run better with the O2 sensor wired in (on the Tiico
kit)to the control unit.

Quoting Jim Arnott <jrasite@EONI.COM>:

> >From the international Automotive Technicians Network.  Reply to
> address
> at bottom, not me.
>
> Jim
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> 1990 Volkswagen Transporter Van
>
> Engine:        2.1 L / 4 cyl / Gas / OHV
> Fuel:          Fuel Injection / Motronic
> Ignition:      Distributor-Breakerless / Motronic
> Trans:         4-speed Standard Transaxle
> Mileage:       79,000 miles
> Emissions:     OBD 2
> VIN:           WV2ZB0255LG062064
>
> Misc Data:     Inline 4 conversion
> Symptoms:      Excessive Emissions
> Occurs:        Always
> More Info:     Repair history included below
>
> ____________________________________________________________
>
> We're in the process of doing a 2001 golf/jetta engine
> conversion using an engine kit from South Africa. As there
> is no O2 sensor wiring in the kit you have to supply the
> wiring from the old harness. We know which pin to use for
> the signal wire (#38) but there is no pin specified for the
> shield (ground) connection. Anybody out there, especially
> from South Africa, that might be able to provide a pinout
> list or at least the pin number for the shield? Could we
> just use a chassis ground near the ECU? I'd rather go
> inside the plug, but I'm somewhat open to "do what works".
> Thanks in advance, John
>
>
> John Larson
> jdlarson@ix.netcom.com
> Technician/Manager
> West Coast Garage
> Santa Maria, California, USA
>
>
> RELATED REPAIR HISTORY
>
> 2 litre inline 4 conversion
>

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