a/f guage question
03-09-2010, 01:33 PM
#1
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Join Date: Jun 2009
Posts: 139
a/f guage question
Im not sure were on the o2 sensor im supposed splice to connect the source wire. Do i splice the black wire coming from the harness? Or the green wire coming from the o2 sensor itself?
Last edited by ZXT83; 03-09-2010 at 01:41 PM.
03-09-2010, 02:51 PM
#2
Black shielded wire. Splice it by the ECU.
Use the ECU wiring diagram to locate the O2 sensor wire. Personal preference, but I cut the wire, & rejoined it w/ a stub wire (so it's a 3 way connection) and soldered it. Then the stub wire is still sticking out to run to the gauge. I have a pic floating around ZDriver somewhere....
Use the ECU wiring diagram to locate the O2 sensor wire. Personal preference, but I cut the wire, & rejoined it w/ a stub wire (so it's a 3 way connection) and soldered it. Then the stub wire is still sticking out to run to the gauge. I have a pic floating around ZDriver somewhere....
03-09-2010, 05:01 PM
#3
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Join Date: Jun 2009
Posts: 139
If you could post that pic id greatly appreciate it, i look for about an hour and couldnt find it. Thanks for the help nismo. Also when i was looking through the shielded wire from the o2 sensor connector back i saw there was splice that had been put back to normal with a double ended crimp or whatever you call it. I assume this was from the previous owner trying to install an a/f gauge. Will the shielded wire being cut then put back together going to cause any problems?
Last edited by ZXT83; 03-09-2010 at 05:10 PM.
03-09-2010, 07:26 PM
#4
The outer shield is just to help w/ radio interference. A lil missing section won't hurt. The black O2 sensor wire goes to ECU pin# 24. See pics ( don't mind the Z31T ecu 
). Pic 2 & 3 are examples of my spliced pig tail stub to run to the a/f gauge.
). Pic 2 & 3 are examples of my spliced pig tail stub to run to the a/f gauge.
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