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1G 1G AEM wideband wiring

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Karma

15+ Year Contributor
142
2
Mar 12, 2006
Sherwood Park, Alberta_Canada
The title of the topic is a little misleading, wiring the gauge is easy as pie. However, im trying to find a way to run the wiring to the sensor from inside the car. AEM says to mount the sensor at least 36'' from the exhaust ports, which basicly leaves me mounting it at the end of the downpipe. But I can't find a way to run thw wiring down the back of the engine without it rubbing on either the steering system, or CV's. Is there a pre drilled hole in the floor somewhere I dont know about.

How / where did you mount your wideband. And how did you run the wiring.
 
... But you need your o2 sensor for closed loop.
 
The sensor will not be fine in the stock position. I went through 2 before I figured that out. I mounted it right before the bend of my DP and ran the wire on the tranny side and around. This is a LC-1 wideband but shoud not be much different.
 
WB in stock location, 2 years, DD. Works fine. :rolleyes:

I'm not sure which AEM WB you have. If it is the 30-2301 then hook the white wire to your stock ECU. It will output a 0-1v NB signal.
 
Will the stock ecu treat the nb signal from a wideband just the same as it was from an actual nb sensor? I guess what I'm asking is, does hooking a wb up to the stock ecu's wire for the nb.... does that make the stock ecu actually run better because it's getting a cleaner/more accurate signal?
 
Will the stock ecu treat the nb signal from a wideband just the same as it was from an actual nb sensor? I guess what I'm asking is, does hooking a wb up to the stock ecu's wire for the nb.... does that make the stock ecu actually run better because it's getting a cleaner/more accurate signal?


I also have my wb in the stock location. It does shorten the life of the sensor however.

The wb controller has an output that simulates a nb sensor, but is more accurate. I doubt you will notice any difference....maybe better/more stable fuel trims.
 
I just installed my WB on the lower side of my down pipe and still currently have the original O2 sensor in the stock position. I am looking to hook up the WB to the ECU so that I can calibrate it and hopefully get a more accurate reading. Based off of 1G ECU schematics it appears that I only have 1 O2 sensor pin 4 on connected C-61. Would it be better to remove the original sensor and connect the WB on the O2 housing and just deal with a potential shorter life of the sensor and connect the WB's wire to the ECU or can I/should I just piggy back the WB's connection off of the original O2's connection? If the latter will it pick up the open loop readings of the WB?
 
Ive been running my Innovate wideband in the stock 02 location for ~3 years with zero issues. I have heard that it is an issue, but OEM o2 sensors sit there for YEARS without issues. To each their own.

I simulate my Narrowband through ECMLink. I did utilize the innovate wideband's narrow output for a while before I got link though. Worked fine.
 
Read these

https://www.ecmtuning.com/wiki/externalsensorinput

https://www.ecmtuning.com/wiki/v3narrowbandsim

Basically, you cut whichever wire you intend to use for your wideband input:

From the ECMLink wiki:
  • EGR Temp Input (ECU Pin 15) - Not 100% compatible with some sensors, such as the AEM WB
  • IAT Input (ECU Pin 8) - see IAT/Baro Notes below
  • Baro Input (ECU Pin 16) - see IAT/Baro Notes below
  • Front O2 (ECU Pin 4) - Only usable when “Open Loop” option is selected (V2 or V3), or narrowband O2 simulation is enabled (V3 only).
  • Coolant Temp Input (ECU Pin 20) - (V3 only) - This will leave the car in “Open Loop”. “Lock Coolant Temp” must be selected, to work properly. Use only as a last resort and only temporarily unless you fully understand the issues.
IAT/Baro Notes
In order to free up the IAT and Baro inputs to the ECU, you must be running a non-Mitsubishi style mass airflow sensor. That can either be a GM MAF connected to the ECU with our GM MAF cable or it can be a GM MAF connected to the ECU through a MAF translator. Or it can even be while running speed density mode in ECMLink.

The point being that you can NOT log an aftermarket sensor on these inputs if you are running a Mitsubishi style mass airflow sensor (1G DSM, 2G DSM, EVO8).

In addition, if you are running a GM MAF with a MAF translator, then you must also make sure you have selected to Ignore IAT/Baro.


What I elected to do was put it in pin 4, eliminate the factory o2 sensor, and enable narrowband simulation, but it only works on V3.
 
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