where can I install the innovate O2 sensor on evo x for logging ?
Do I need to drill a new hole in the exhaust or I can use the first O2 location?

Thanks !

 

If you pull the primary o2 sensor your car won't run for ****.

You can use the secondary o2 sensor bung, but your car will throw a code (likely P0420) -- although it won't hurt the car or cause it to run funny.

I recommend welding a new bung on the car and using that. It needs to be in the 9oclock to 3oclock position (not hanging down).

 

and where should I weld the bung? before or after the first O2?
On subaru's I used the secondary O2 location and disabled rear O2 with ecuflash

 

Most widebands suggest a location at least a couple feet from the exhaust port outlet. Read the instructions that came with your wideband. I highly recommend choosing the location carefully and make sure you weld the bung in a place that is as easily as possible to get at. Mine is about in the middle of my downpipe.

 

Mine is on the test pipe since it's easier to get in and out that the o2 housing/downpipe.

Right now, you can't disable the rear o2 sensor on the x's, otherwise you could do just as on the scoobies.

 

in the innovate lc-1 manual they say that if you place the WB on the downpipe it can be damaged by the heat generated by turbo

 

Innovate will say all sorts of crap like you need to use some sort of extender instead of the bung that _they_ ship with the kit. I think utimately the further away you are from the exhaust ports the better it is for the life of the wideband but your readings will have a bit more lag when doing logging from the actual ignition event that created the exhaust pulse.

I made the mistake in saying where I put my sensor for my VI. So for a X use your best judgement and find out the easiest place... downpipe, test pipe, etc.