I'm running a 95 sohc vtec block w/ 97 sohc vtec head. Ever sence the head swap I have been getting engine code 1 02 sensor. I replaced the 02 sensor with a brand new one and I still get the code, immediately after the car is started. I know I have a vacume leak at my throtle body temperarily, could this trigger oxygen content engine code 1?
-Derek-
.Afterdark.

 

No, vacum lines will not pull a code. Some things to look for: Bad wiring between ECU and Sensor, Bad Sensor, or ECU Failure. Happy hunting and Good luck.