O2 Sensor Help

JZO6ETR · Post by **JZO6ETR** » Sun May 20, 2007 5:14 pm

Ok so I was wondering if i am supposed to have 1 or two O2 sensors hooked up on my car,It has 2 sensors but only 1 is hooked up?if u need more info on my car just let me know,The reason I am asking this is the car is running pretty rich?
91 Crx si
B16a With a Pr3 Ecu

Thanks

90CivicEx · Post by **90CivicEx** » Sun May 20, 2007 5:26 pm

JZO6ETR;44224 wrote:Ok so I was wondering if i am supposed to have 1 or two O2 sensors hooked up on my car,It has 2 sensors but only 1 is hooked up?if u need more info on my car just let me know,The reason I am asking this is the car is running pretty rich?
91 Crx si
B16a With a Pr3 Ecu

Thanks

Honestly the ecu reconizes the first o2 sensor and uses the second as a backup kinda. If you get your ecu chipped you can get the secondary o2 disabled.
Stolle or Rickles can do this but you will have to pm them to see when they have time since there very busy at the moment with there lives outside of stlhondas.

JZO6ETR · Post by **JZO6ETR** » Sun May 20, 2007 5:34 pm

Well actually,i'm not shure if it's chipped already or what,when i got the car there was little or no info on what was done to it,so really I guess i would need someone who knows hondas real good to come over and listen to my car,and tell me what they think I need to do or what!

90CivicEx · Post by **90CivicEx** » Sun May 20, 2007 5:43 pm

JZO6ETR;44227 wrote:Well actually,i'm not shure if it's chipped already or what,when i got the car there was little or no info on what was done to it,so really I guess i would need someone who knows hondas real good to come over and listen to my car,and tell me what they think I need to do or what!

well it's simple to see if its chipped to tell ya the truth, when ya open it you will see the chip in there but I guess ya have to know what your looking for. Where did you get this crx?

JZO6ETR · Post by **JZO6ETR** » Sun May 20, 2007 6:42 pm

Got it from Honda-Man "Greg" but he didn't have it long enough to know what was done to it either, And do you mean open up the ecu? Where abouts is the chip ? This is why i need someone to come check out my car:huh:

JustRob · Post by **JustRob** » Sun May 20, 2007 10:05 pm

Where are the O2 sensors at and is the exhaust stock or aftermarket?

JZO6ETR · Post by **JZO6ETR** » Sun May 20, 2007 11:29 pm

No only thing stock is the header and downpipe,all 2 1\2".Theres 1 sensor right before the cat which is the 1 dissconected,and then theres another 1 right after the cat,which is the 1 that is hooked up.

JustRob · Post by **JustRob** » Mon May 21, 2007 12:18 am

JZO6ETR;44282 wrote:No only thing stock is the header and downpipe,all 2 1\2".Theres 1 sensor right before the cat which is the 1 dissconected,and then theres another 1 right after the cat,which is the 1 that is hooked up.

Disconnet the O2 Sensor after the cat and hook up the O2 Sensor before the cat and see if that fixes your problem. Those cars only have one O2 sensor since they are OBD-0.

JZO6ETR · Post by **JZO6ETR** » Mon May 21, 2007 1:45 am

Sounds good,I'll try that tonight and see if it gets any better,Thanks

JZO6ETR · Post by **JZO6ETR** » Mon May 21, 2007 6:29 pm

Hey are you shure that there is only supposed to be 1 o2 sensor on the obd0 b16a,cause i was reading somewhere that there is supposed to be 2 hooked up.I haven't hooked up just the front 1 yet but i will as soon as I get home from work,then i'll let ya guys know how that went!