I'm doing a TII swap in a 1st gen. Custom making a 3" exhaust and have some questions on where to install my 02 sensor, LM-1 sensor and EGT sensor.. running a E6K and GT35R T04 on the eng.. any ideas? Also should I use a 02 sensor with my E6K or run a dedicated 02 for haltech and use my LM-1 sensor just for tuning? EGT sensor should be 1/2 way down the downpipe? Thanks for any info.

 

The O2 sensor can go around 6-10" from the turbo on the down pipe, and the EGT should go closer, about halfway between there.

I would just use a 4 wire sensor as regular monitor for O2 ratios, and install an additional bung for the wideband and cap it, so you only use it for tuning, since the wideband sensor is more delicate than the regular one.

 

Thanks for the help... Where can i get a nice 4 wire 02? local auto parts? Bosch universal?

 

You can also wire the wideband to the e6-k and with the right software datalog and monitor the A/F ratio in real time.