..... And in the 1988 1989 main diagram p 97.124 I now see the diode
referred to earlier.
The likes of Mark Drillock and David B have written about that relay.

87 of the ecu  relay supplying switched positive to 86 of fuel pump
relay, is somewhat misleading. The fuel pump relay is energized via a
switched ground from the ecu.

In my later (latest?) edition of Bentley the ecu relay is correctly
labelled p 97.124

Apologies to the op for pulling this tooic OT.

Neil

On Thursday, June 2, 2016, Neil N <musomuso@gmail.com> wrote:

> Yes. That positive connection in harness feeds a few things.
> The ECU relay became a 5 pin affair in 88 or so. Eg my 88 may have a 4 pin
> ecu relay
> Can't recall. It does use 87 wiring in some cases.
>
>
> On Wednesday, June 1, 2016, Robert Keezer <warmerwagen@yahoo.com
> <javascript:_e(%7B%7D,'cvml','warmerwagen@yahoo.com');>> wrote:
>
>> Apparently VW made some changes in 1988?
>> Shows the relay without the diode even.
>>
>> On page 97.124 it also shows the 86 also has a connection with the
>> injectors and O2 sensor.
>> Seems strange that 87 and 86 would both be connected to the same loads.
>>
>>
>>
>
> --
> Neil n
>
> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>
> 1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
>
> 1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
>
> Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
>
>

--
Neil n

Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>

1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>

1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>

Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>