This 93 Accord LX with 5 speed manual transmission needs help. I need help. After each start of engine, it runs poorly like a two stroke engine out of power band. Once it hits 4000 rpm, it runs very strongly.
If I run it run for a few minutes with stumbling and loss of power, Check Engine Light comes on. As soon as it comes on, the car drives smoothly with more power. Checked codes and they are 1 and43. They have something to do with O2 Sensor which I had changed last week. With Haynes Manual in my hand, I checked resistance for heater circuit and there is no continuity. I checked voltage while engine is running and it is not producing specified voltage. I went back to a store I bought O2 Sensor. The sensor of the shelf did not have resistance between heater terminals, either. I now do not know what to do.

 

Yes, this seems to be wrong. I have found the picture posted by Mr Hondadude;



this information may help you.

It seems a shame that this website discards persons that provide good information such as this.

 

Thank you Mr. Yamada for posting this diagram. I will check outgoing voltage to the sensor, which was not mentioned by Haynes.

The car runs ok with sensor disconnected, but fuel economy must be bad.

I know Mr. Hondadude from other Honda Forum.

 

It was faulty new sensor after all. Bosch sensor was replaced with Denso sensor and the car is running fine.