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1G Aem wide band to stock ecu

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Steve92talon

Proven Member
156
21
Jul 3, 2019
Fernie, BC_Canada
Can I install just the aem wideband to the 02 housing for my ECU with the 5v wire and eliminate the stock o2 totally? Its behind the flex pipe now and works great.
 
This is the wiring
 

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There was no dial on it so I guess it's the new style just a plastic back with 2 plugs
 
If you’re using the old aem uego gauge turn the rotary dial to p4 and run the output wire directly into the ecu’s o2 input. If you have a new x series you can’t run it to the stock ecu unless you’re running link.
I have it on p04 and do I hook the white or blue wire to my ecu?
 
Is the wide band better in the 02 housing or where it is behind the flex pipe. I read the 02 housing is too hot for it
 
I currently have it in o2 housing.
I have manifold blanket, turbo blanket, and a somewhat wrapped o2 housing, AND the wires on the o2 sensor are wrapped in Earl's Flame Guard.

Car is 100% street driven right now —> no issues so far.
 
I have the Innovate LC-2. Innovate has been known to be more finicky than the AEM. I have read the manuals for both.

Innovate’s literature states 24” after turbo.
AEM’ literature states 18” after turbo.

I’ve always recommended ~18”.
I think 12-14” is perfect, but I don’t go around recommending that as I’m not 100%, but I would imagine the closer you get, the better. My thinking is the time it would take for the mixture to move from the combustion chamber to the sensor.

I think what really matters is how much power you’re gonna be making and how you’re gonna drive the car (how much heat is the sensor gonna see regularly)
Innovate’s literature states 900*F max temperature
AEM states 1700*F will damage or destroy o2 sensors.

Innovate has a heat sink “bung extender,” AEM has a stainless steel tall bung with fins, and I remember back in 2011? The recommendation was to mount the sensor in a copper sheet heat sink bent 45* on each side.

I ran through 2 sensors before paying attention to Innovate’s recommendations.
I follow almost all except for the 24” away one. I’ve had mine on my car now for way longer than I’ve had the other ones. If it goes I may move it, I might not.

Other recommendations straight from the LC-2 manual.
When installed in the exhaust, the oxygen sensor MUST be connected and operating with the LC-2 whenever the car is running. An un-powered oxygen sensor will be quickly damaged when exposed to hot exhaust gases.
AEM states the same thing.
Sensors that are installed in an exhaust must be connected to a properly
functioning controller during engine operation.

Both manufacturers state shock cooling will damage the sensors. So don’t let them warm up TOO much before starting the car. I used to do this one all the time. Also watch raw fueling issues and/or REALLY rich conditions (9.5:1-7.0:1 for pump gas) as these will damage the sensors.
 
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