hatchedlsvtec
Large Member
So I put a 91 integra ls motor in a 91 civic si, then I swapped the head for a 95 gsr. I have a CEL 41, o2 sensor circuit malfunction. The car is made for 1 wire o2, but the ecu for the head requires a 4 wire o2. At first I kinda guessed on how to wire it, and of course I was wrong. If the sensor is not wired correctly, will it be damaged if used? Anyway I got an answer from a previous thread about where in the ecu the 4 wires go, but after connecting them all correctly i still have check engine light. Even after leaving battery disconnected for 1 hour and 1/2. Right now it is wired:
black o2 wire, sensor signal -- D18
gray o2 wire, o2 ground -- D22
white o2 wire, heating element -- A6
white o2 wire, heated signal -- D14
If this is wrong, it'd be tight to know. It sucks having Paid and worked for vtec and, just not have it. Also, the ground wire from the vtec pressure switch is just connected to the motor... it's a ground connection, but does it need to go to a ground in the ecu? Any info is awesome
Thanks
black o2 wire, sensor signal -- D18
gray o2 wire, o2 ground -- D22
white o2 wire, heating element -- A6
white o2 wire, heated signal -- D14
If this is wrong, it'd be tight to know. It sucks having Paid and worked for vtec and, just not have it. Also, the ground wire from the vtec pressure switch is just connected to the motor... it's a ground connection, but does it need to go to a ground in the ecu? Any info is awesome
Thanks