Posted in the accord section by mistake.
94 vtec ex 2oor. Check engine is on and the blinks look like four long and one verry quick. Can i call that a 4/1 and call it a o2 sensor (heater). It's a three wire sensor.

 

If my thread is hard to understand just tell me and i change it up.

 

yea your code is 41 which is primary o2 sensor