Gmoney97

My wife has a 96 accord EX. The check engine light came on, so I read the code and it is P0141 o2 heater circuit malfunction bank 1 sensor 2. I'm assuming this is the senor behind the catalytic converter right? The only problem is I looked in the haynes manual and it doesn't say anything about an o2 sensor behind the catalytic converter. I looked at the exhaust and I didn't see one. I'm assuming I just missed it somehow but can somebody help me out and tell me exactly where it is or show me a pic? Oh yeah and where is the first one at, I found one before the cat but since I didn't see one after I'm suspecting that it might be the last one and then there is one closer to the exhaust manifold. It doesn't seem right cause I know there should be one before and one after but I can't find it so that's the only thing I could think of. Please help.

99problemssss

i gotta 95 LX , it may be different but there's only one O2 sensor . I've seen some other makes like toyotas that have two (b4 & after cat). Lot of Hondas have just the one. The primary should be right there on the exhaust manifold.

Gmoney97

From my research your's only has one. It could be because it's an lx or it could be because it doesn't have and OBD II.

BLKFLSH

I think ex's have two, and lx only has one.

pngfolife

PO141 should be bank 1, sensor 1 - your primary O2 sensor. It's not that hard to check the heater circuit. Disconnect the connector check for continuity in the heater circuit (should be the black wires).

Gmoney97

No it's bank 1 sensor 2, I think I know where the primary is just want to know if anybody knows exactly where sensor 2 is.