Rep Power: 311

are there two o2 sensors? i have two wires.. one goes to the downpipe, right where it connects to the header, and one back behind the resonator. are they both o2, or is one of them something else? it's 30 some inches long. mine got burnt on my exhaust, so i need a new one.. so i was wondering if it was the o2 sensor or not. it annoys me, everytime i hit the gas hard, it sputters.. so i think it is the o2, but i wanted to make sure they were both o2 sensors.. if it isn't.. can someone tell me what it is?

 
Rep Power: 373

there are 2 sensors but both dont total 30 inches long, take it to the dealer.

Injen

 
Rep Power: 311

2nd one is over 30inches.. the one that goes behind the cat. i got it fixed though. i had the **** to make a new one. runs like it did 3 weeks ago... finally.

 
Rep Power: 338

the first one measures the air fuel ratio to make sure its right for economical efficiency, the second one just tells the computer that the cat is working

 
Rep Power: 0

yea the 2nd one is actually pretty long, its clipped so it doesnt show the full length but they are both 02 sensors.

 
Rep Power: 333

sorry for thread hi-jacking cocky, my apologizes in advance.
but my o2 sensor thats on the cat itself snapped and im currently running with 1 (one) o2 sensor which is the one closest to the header (or under the header). now what can i expect without the 2nd o2 sensor that suppose to be attached to the cat? should i be worrying about this? if its just the light itself without any harm to the car then im not gonan worry but someone please please hand me down some info i have a 2003 ex coupe and my Malfunction Indicator light is on. any info will help.

thanks,
Tommy

 
Rep Power: 338

running without the second one wont hurt the car.. just cause the cel to be on

also it will run rich because it is setup to be like that by default

 
Rep Power: 0

and also since you have an ex, your vtec won't engage because of the CEL

 
Rep Power: 0

really civichx01??

 
Rep Power: 333

i confused about how that works i dont know deep knowledge about vtec but doesnt vtec have to deal with the motor itself and nothin else? fill me in...