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Ecu diagram

5K views 14 replies 5 participants last post by  Rider 
#1 ·
Does anyone have the wiring diagram for the ecu? I am looking to install an a/f gauge. I need to find the o2 wire on the harness. Thanks in advance.
 
#13 ·
I guess that is why I am a little confused with what you are trying to do, the wideband oxygen sensor should not be hooked to anything on the ECM at all, unless you are using a narrow band output to send to the ECM instead of the stock oxygen sensor, but that is pretty abnormal to do. The widebands only require ground and switched power to work, nothing typically gets hooked into the ECM, they are completely separate.
 
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