hey whats up. alright i put a header onmy car my car has 2 o2 sensors. But only 1 hole in the header..my car is running really rich and the check engine light is on all the time. will a sensor simulator make the light go off and the fuel run leaner? wow strong *** smell man..Ive been gettingheadaches driving..

 

Take the header to a muffler shop and have an O2 bung put in it and run the second o2.

In the meantime attempt to wrap the O2 in aluminum foil and hang is somewhere where it won't get damaged.

 

where is the second o2 sensor supposed to plug into? There doesnt seem to be a connector for it on the y8 engine harness?

 

the other o2 sensor should be in the cat. its a 4 wire heater o2 sensor. the one in ur header should be a 2 wire.