|Disconnect the battery before doing
anything. Remove the fuel pump, EGI, INJ fusible link fuse. This is
one fusible link fuse. Remove the clear cover from the top of the
fuse shell. Turn it around so you can look into the end which plugs
into the fuse box. In this end you will see the two things which I
have circled in the picture below. These are plastic springy fingers
which are part of the shell and are used to hold the metal plugs
inside. Use a small jeweler's screwdriver and while pushing the
springy plastic finger toward the center use another small
screwdriver to push the metal plugs out toward the other side. Move
each side a little at a time until they are out. Get an extra
fusible link fuse of the same type and disassemble it the same way.
Be careful to leave the fusible link intact. This one will be used
in the circuit which will be mounted inside the car.
With the first fusible link, cut out the center fuse. Solder a
long length of ten gauge wire to one of the metal plugs so that it
comes out of the top of the fuse shell when the metal plugs are
reinstalled. Make sure the wire is long enough to reach where you
plan on placing the relay, switches and second fusible link inside
the car. Put both metal plugs back in the fuse shell making sure
that the one which has the wire soldered to it is closest to the
securing lever which is on the side of the fuse shell (see diagram).
This is the pin which connects to the injectors and the fuel pump,
ignition, and ECCS relays. The fuse cover is only marked fuel pump,
EGI and INJ. Run the wire down along the side of the fuse box and
reinstall the fuse box cover. Run the wire to the inside of the
With the second fusible link, solder one length of ten gauge wire
to both plugs. Solder them close to the plug end of the metal. After
doing so, push the metal plugs back into the fuse shell being
careful not to damage the fusible link. This time feed the wires
through the fuse shell so they come out of the plug end and not the
top. Replace the clear cover. This will serve to function as the
original fusible link did. Use the diagram to connect everything up
and mount things where you feel is best.
The bypass switch is used to keep the ECU from resetting in case
you need to check for engine codes. If you do not have a turbo timer
this switch can also be used as an engine kill switch as well as
disabling the constant injector voltage. This circuit can be used in
all year vehicles.
Fusible link, plug end.
A drawing showing the electrical path of the voltage going from
the fusible link to the fuel injectors and the fuel pump, ignition
and ECCS relays.