[Davo53209@yahoo.com]

Okay folks, I'm presently looking for the definitive answer to which type of O2 sensor that I would need to buy to enable lean burn on my 94 Civic Vx. I just recently purchased the vehicle, whereas the NTK O2 sensor that's currently installed is stamped as LZA09-E1. I'm not certain; but I think that this may be the wrong one.

To get right to the point, am I stuck with purchasing the OEM version, or is there a comparable aftermarket sensor that will give me the same result as the factory OEM O2 sensor? If so, who makes it, what's the part number, and where can I find it? Also, it would be great to hear from any member of this forum who can attest to utilizing one.

My car is a stock 94 Civic VX Federal, with the D15Z1 engine and 5-wire O2 sensor. Overall, the car runs fine; but my gas mileage has been lousy.
Thank You.