Second lambda extender
 

Can you please suggest me where to buy, or find the plugs to make it?
Thank you

secondary O2 spacer doesn't work good on this platform

It will mess with the A/F#3 correction, unless you disable it, so your cruising and transient afr will be a mess

It will trigger a CEL after a while, even if you disable the A/F#3 corrections, can t remember the code but it is the DTC that relates to "sensor 2 bank1 too lean".. again, unless you disable the DTC (and if ecutek found the DTC in first place)

It MAYBE corrects the P0420 cat DTC, which requires anyway a single click on the tune to be deactivated and doesn't influence anything else


When you disable A/f#3 and all DTCs you can even delete the O2 sensor, so the spacer is useless at this point

Can't help you to find a good O2 spacer, but if you use it, use it temporary because it messes things

Sorry, I hadn't been clear. I don't mean a spacer to prevent CEL, I meant a wire extender...

This is the company I used to have an extension made: https://iwireusa.com/