looking at buying this 94 ex coupe. only major problem is that its throwing a code 41 (primary oxygen sensor heater). i did a search and got some info but am still kind of confused. btw this car has a cat-back exhaust (apexi i believe) and a "hi flow cat".

ok so now my question:
how many o2 sensors are there on this car? 1 or 2? i saw the one on the header. is there a way to fix this problem without buying a new o2 sensor? i read that it could be a fuse or the wire. thanks.

 

theres only 1 but just replace it, dont be cheap

 

k thats what i thought. the b series engines and newer d series have 1 o2 before the cat and 1 after as well correct? i was mainly concerned that since the previous owner put on a "hi flow" cat that he might have made it so that an o2 sensor was completely eliminated, which obviously isnt the case.

 

u have a obd1 car!!!
u have 1 o2 sensor!!!
just replace it did u even look under the hood

 

yea i saw it right on the header. it is not my car, it is a car i might buy. i wasnt sure if there was a o2 sensor somewhere after the cat or not. i couldnt see one from just looking under the car. anyway thx for the info.

 

The stock o2 sensor is not cheap. Price it out and then have the seller adjust the selling price accordingly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iflybye &raquo;</TD></TR><TR><TD CLASS="quote">The stock o2 sensor is not cheap. Price it out and then have the seller adjust the selling price accordingly </TD></TR></TABLE>
i found a brand new o2 sensor for $75 shipped on ebay and yes it is an oem honda one. look around