Hi,

A few questions regarding how to install the following on an STiV ...

Boost gauge: where is the best pressure take off point/which tube to cut?

Knocklink Sensor & display: where is the best place to attach this?

Air/Fuel gauge based on oxygen content of exhaust gases: I am assuming that I splice it into the sensor on the downpipe ... which wire(s) do I use coming from that sensor?

Generally, how/where do I need to route the wires & pressure hose through to the interior of my car? Where do you connect earth and switched 12V line for the gauges (inside/outside the interior?) - is it OK if I tap into the stereo connector for this? Where do I connect the illumination wire on the boost gauges (to 'lights on' switch somewhere I presume)?

I have also got a 2 gauge pod that goes down the side of the window that looks like the original trim apart from the pods - do I have to cut the original trim to fit this?

Cheers
Paul

 

Hello, maybe http://www.ravensblade-impreza.com/ got some excellent examples of fitting guages etc....

Click the modifications link..

Hope that helps.

 

Thanks for that link - very informative.

Since my original post I have eliminated all but one problem - which wire on the downpipe sensor is the O2 signal for the air/fuel ratio meter? There are 2 white ones & a black one. Can someone refer to my simple layout below and indicate which one to use?

W1---W2
----B----

Cheers
Paul

 

you don't have to go all the way to the lambda sensor for the signal wire, you can pick it up at the ecu.

see here