Pieter Schepers

What is the easiest way to get cables from the cabin to the engine compartment without drilling holes? I want to install an afr gauge and oil pressure gauge.

brdaun

When i plumed my fuel pressure line there is a gap in the wall above the pedals that leads into the fuse box, i managed to feed it through there. Was more consuming then one would think as i couldnt really locate much for pass throughs in the firewall.

seanol

There are a few I have used, one under passenger side air box. Grommet below the cabin air filter box. There is also a grommet on the side of the transmission tunnel on drivers side that can be seen from underneath car. Last is one right near the Ecu.

mbmg

For my ZT-2 data logger EGT and wide-band cables I used the grommet near the ECU passenger side foot well. For all of the other sensor wires I ran them through the passage under the driver's dash near the brake pedal (E55 left hand drive) that goes through the front SAM on the driver's side engine compartment. If you put a light under the dash you can better see the passage when looking down at the back of the front SAM.

Pieter Schepers

I ended up using the grommet in the trans tunnel. Still have some wiring to finish, but all cables are in place.

mbmg

looks good