I have both an ETS intake and the ETS UICP on my X. Nothing else. Spoke with ETS about it and seems safe to run on a stock tune.

With that said, I had my wideband put on right afterwards.

When the car is stopped, it goes around 18 and then off to no reading on the lean end. Is that normal?

When cruising along it goes up and down...13 - 15.5...maybe 16 depending on how gas I give it. This seems about right I believe.

I have only gone WOT about two times to check it...both dump it down to around 10.5 - 12. Reason being is I have a small exhaust leak in the gasket with the downpipe and waiting to get a new gasket delivered to the shop and installed so I have been taking it easy on the car till then.

thanks

 

actually i think I answered my own question at idle. The exhaust leak is probably causing that and I expect it to go down once the leak is fixed.