AEM ems question about front O2
Feb 25, 2011, 10:41 AM
#1
AEM ems question about front O2
Hi I need to revert my car back to stock ECu for inspection and I recall from the guy I got my car from I needed to reconnect the front O2 for inspection. There is a white wire free with a pin on it im assuming thats the correct one? So I just pop that back in pin 76? The car has a series 1 ECU if that matters.
Mar 4, 2011, 01:03 AM
#2
Ok it appears there is a green/black stripe wire where the front o2 is and the white wire is hanging free taped up. My question is is there some output that the AEM uses on that pin? I know the white wire is still hooked up and fuctioning because it has a reading coming off of it.
Mar 4, 2011, 08:04 PM
#3
Ok it appears there is a green/black stripe wire where the front o2 is and the white wire is hanging free taped up. My question is is there some output that the AEM uses on that pin? I know the white wire is still hooked up and fuctioning because it has a reading coming off of it.
If the above is the case, just route the narrow band wire back where your wide band is now. It looks like O2 #1 (front o2 sensor) is the middle pin (6th one in from either side of the connector) on the end connector next to the smallest connector (the smaller of the two end connectors). Each connector has a side with 2 small ridges and the other side has more ridges. It is on the row next to the side with more ridges.
Last edited by fre; Mar 4, 2011 at 08:12 PM.
Mar 5, 2011, 08:42 AM
#4
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When installing an AEM EMS into an evo, you clip the white wire which is primary 02 and route your wideband to that wire to plug and play to the ems
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