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Re: [T3] Fuel Injection Question


On 16 Dec 2001, at 22:47, Mark Fuhriman wrote:

> No, all FI Type3s came with a version of D-Jet.  Then, depending on
> year, you have either version A, B, C, or D (altho I saw that
> 'Pat@volksclocks' put the E version on his son's '71...).

Those really aren't the versions of the FI, they are the suffixes of 
the VW part numbers of the brains. There were really just 3 
different "generations" of type 3 D-Jetronic FI: 68-9 (A brain 
followed/superceeded by B), 70-1 (C brain followed/superceeded by 
D), and the 72-3s which all had E brains, although the Bosch 
numbers varied.

> Great advice here.  Never touch the FI until the regular ol' tune-up
> items are in order.  Also check the timing and system voltage to make
> sure they are all in order.  

Absolutely!

> > The injector wires with gray boot should be on cylinders 2 and 4 (
> > the rear most 2 injectors) and the black booted wires should be on
> > cylinders 1 and 3 ( the forward most 2 injectors)
> 
> ...Assuming the boots are still there and intact...  

Places like West Coast Metric at least used to have the black 
ones, but I've never seen the grey ones for sale in the aftermarket. 
Fortunately, I find that the grey ones seem to be very much more 
durable and tend to greatly outlast the black ones.

> >  If yours hasn't been messed with and you want to try to
> > adjust it here are some very important notes:
> 
> .. I think you're much better off never trying to touch this unless
> you have the O2 sensor.  By playing around with it, odds are that
> you'll mess something up and be worse off than before. 
> 
> In addition to the Bentley manual (and some of the links you list), I
> like the Elfrink FI manual.  I found mine in a used book shop..

All good advice, as usual.  ;-)

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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