Just like with stock NB O2 sensor. In case of lack of O2 signal the ECU will throw bad front O2 CEL and will go into the open loop control.

 

I just wired my ZT-2 NB output to the ECU last weekend and now have it at 15.5 for closed loop. Works like a charm.

I've been meaning to do it for a long time, and my front O2 sensor finally crapped out after the turbo install last week and i just had to stop being lazy and do it already Not to mention the gas prices, filled up with E85 last night at almost $3

 

A good reason not to buy a new stock NB O2 sensor but use the wideband to do the trick. We have couple cars here running Zt-2s instead of stock O2 for several years now. The cars pass strict California smog check with flying colors. Just make sure you set the Zt-2 NB switching point to 14.7

 

Couldn't be happier with my ZT2 setup. People probably think I secretly work for you guys, the way I always recommend the damn thing lol.

Do you guys offer an EVO-M member discount by any chance??? At least on certain products?

 

good thread, I'm interested