For a compression test on a Digifant pull the ECU relay.
This will disable the ignition, injectors, and fuel pump.
To avoid having to figure out which of the 2 is which, mark and pull
both.
The relay with the most wires and the only one with brown wires is the
ECU relay if you want to pull just one.

The Bentley diagrams have errors for this area of the wiring on some
years.

Mark

gary hradek wrote:
>
> Karl,
>     So which one(on an 87) would you pull when doing a
> compression check and why?   thanks gary
>
> Date:    Tue, 22 Apr 2003 19:55:50 -0400
> From:    "Karl F. Bloss" <bloss@CITYNET.NET>
> My experience with this tells me that on my '87, the
> relay on the
> passenger side is fuel pump, but not injectors.  The
> reason I say
> this is that you can take that relay out, run your
> engine and it'll
> depressurize the fuel system by burning whatever gas
> is pressurized
> in the lines.  The engine should die in a few seconds.
>
> This allows you to depressurize the fuel lines when
> you replace them.
>