obd2 tb on obd1 managment

[VOLKSMAN]

that makes sense now, but i have read on vortex that obd1 throttle bodies have larger bore than obd2 (on the 2.8 that is) .

[mk3pete]

not sure on that one matey
but i just measured my new tb and its 68 mm roughly
with that info im assuming the obd1 tb is 62 mm

[mk3pete]

quick bump
does anyone have these parts that are required?
obd2 upper intake manifold
OBD2 ABA harness
also would like a wiring diagram too
and finally will the obd2 upper mani adapt to the obd1 lower mani. reason i ask is i already have a spare obd1 lower mani i bought off golf loon.

[whiteVR6]

Im pretty sure we dont have OBD in this country .

[mk3pete]

Im pretty sure we dont have OBD in this country .

hmmm im not too sure what you mean by that

[mk3pete]

well iv got the intake manifold, thank you ebay
all i need now is an obd2 tb plug with pigtail so i can wire it into my car
any takers?

[Golf Loon]

You just need the plug for the later kind of throttlebody.

The early ones have a 3 pin plug for the TPS and a throttle stop screw.

The later kind have a variable resistor setup and a 7 pin plug.

Good luck converting one to the other.