Questions and Answers
Accord Code 43: O2 Sensor?
Q. Hi! I am desperately seeking an advice. I have a 1990 Honda Accord LX 4 cylinder, automatic transmission, 144.000 miles fuel injected, cruise control, power steering and A/C. Two weeks ago the check engine light came on and I experience too low gas mileage.
I did a self UCE/ECM code check which gave me a code 43 (based from research also and some advice from the net) its a O2 Sensor prob /fuel system.
My questions are:
1. Is it really the O2 sensor?
2. Can I changed it myself?
3. What tools are needed?
4. Where can I buy the replacement?
5. Where is it located ?Your response/assistance is supre highly appreciated!
ArtA. Okay Art, by the numbers.
1. Since I haven't personally looked at your car I can't say for sure it is a bad O2 sensor. It could be a bad O2 sensor as well as a bad fuel pressure regulator or a problem in the wiring.
2. Yes, you can change it yourself. All you need to do is unplug it and screw it out. When you install the new one, put a dab of anti-seize on the sensor threads.
3. A 22mm or 24mm box or open end wrench. There is a special O2 sensor socket you can but if you wish.
4. At a Honda dealer or any auto parts store.
5. Here's a picture of the O2 sensor location
Additional Information provided courtesy of ALLDATA
