AEM Wideband help - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ppbiggums · 06-13-2015, 04:09 PM

I'm trying to get my failsafe gauge to work but its constantly stuck at 18. I have wired the o2 sensor and the power and ground, but where do the white and blue wires connect too? I looked in the other threads but couldn't find anything

Thanks

Skorov · 06-14-2015, 08:57 PM

You mean it is stuck on 18 on the display? This means it's getting max voltage.

I would unplug everything but the essentials (red wire, black wire and o2 sensor connector), and check to make sure the sensor and gauge function properly.

Also check the pins on the o2 sensor connector to make sure they getting contact.

Kodename47 · 06-15-2015, 02:30 AM

Calibration done?

King Tut · 06-15-2015, 11:36 AM

No calibration on the AEM failsafe. As long as the O2 sensor connector is plugged in and the red wire has 12V and the black wire has a good ground, then the gauge should work properly. If it is displaying 18.0 AFR which is max on the gauge, then the sensor is either bad or damaged or in normal air where that would be the correct reading. The fact that it is displaying anything means the 12V and ground should be good.

06-13-2015, 04:09 PM	#1
ppbiggums Member Join Date: Jun 2014 Drives: '14 BRZ Limited Location: United States Posts: 27 Thanks: 51 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	AEM Wideband help I'm trying to get my failsafe gauge to work but its constantly stuck at 18. I have wired the o2 sensor and the power and ground, but where do the white and blue wires connect too? I looked in the other threads but couldn't find anything Thanks __________________ Gotta dollar and a FI dream

06-15-2015, 02:30 AM	#3
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,633 Times in 1,113 Posts Mentioned: 156 Post(s) Tagged: 1 Thread(s)	Calibration done? __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

06-15-2015, 11:36 AM	#4
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	No calibration on the AEM failsafe. As long as the O2 sensor connector is plugged in and the red wire has 12V and the black wire has a good ground, then the gauge should work properly. If it is displaying 18.0 AFR which is max on the gauge, then the sensor is either bad or damaged or in normal air where that would be the correct reading. The fact that it is displaying anything means the 12V and ground should be good. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

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06-14-2015, 08:57 PM	#2
Skorov Senior Member Join Date: Mar 2012 Drives: 86 GTS White Location: Sydney, AU Posts: 603 Thanks: 103 Thanked 169 Times in 105 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	You mean it is stuck on 18 on the display? This means it's getting max voltage. I would unplug everything but the essentials (red wire, black wire and o2 sensor connector), and check to make sure the sensor and gauge function properly. Also check the pins on the o2 sensor connector to make sure they getting contact.

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