I was just wondering if i can wire a primary o2 sensor up in the secondarys spot? and will it work that way?

 

naw theres 2 O2 sensors for a reason. The first reads rich and lean, in a sinusoidal wave, going from rich to lean. the second O2 sensor is to read the exhaust (clean now) to make sure the cat is doing its job. Theres aftermarket computers to **** your ECU into thinking the second O2 sensor is workin, allowing no cat.

 

alright thankyou very much

 

its been done. usually the car runs slightly richer than it should. but it will only help later on down the road for when you do more mods to increase air flow.

were running an 89 STD hatchback with a JDM B16A, with jumped 02 sensors. weve not had any problems