I have been throwing a code 2 (oxygen content) for a while now and I am out of ideas. I have replaced both sensors and I still keep getting a code 2. I have an obd 0 pr3 ecu and I am using 2 1 wire 0xygen sensors. My idle will fluctuate from 1000 to 1450 when warm , but when reaches normal operating condition, I will idle normal. This code is making my car feel very sluggish. I was thinking of purchasing an 02 simulator to fish this. If anyone has any suggestions, please help me out. Thank you.

 

i thought most obd-0 systems were single wire single o2 sensor.. i havent heard of an obd-0 setup that uses 2 o2 sensors. . but.. maybe i am just out of the loop.

 

B16a1
Make sure your sensors are wired as shown:
It is very common for them to be wired backwards..

 

would this cause a cel if they were wired wrong? I am going to check later.

 

heh, yeah.. thanks for correcting me.. i wish i had a b16a. lucky.