AEM Wideband Failsafe Gauge - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

OjiGeorge · 04-14-2014, 04:23 AM

Ps: I do appreciate your solution, thank you for posting it

Reaper · 04-14-2014, 12:37 PM

Post a picture of the coil wire if you get it. I still need to wire mine in. Right now its just wired up as a wideband for the ecm.

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OjiGeorge · 04-14-2014, 06:24 PM

Will do. Looks like the car won't be going into the shop until next week so should have some time to play around with it this week. @AZFA20, does the gauge need to be configured for 2 revolutions for every signal?

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OjiGeorge · 04-19-2014, 05:55 AM

Before I go into tapping one of the coils leading into the ECU harness, has anyone else actually used @AZFA20 method with the AEM fail safe with seamless success, and no worries about messing up the ECU/motor?

Don't have the funds burning a hole my my pocket to be a pioneer here...

HRTROB · 04-25-2014, 06:52 AM

How long did you guys set the alarm delay? I keep getting false alarms when tipping in the throttle after an upshift when the AFR jumps to 18:1 for a split second. I currently have it set at 550ms.

King Tut · 04-25-2014, 11:53 AM

Quote:

Originally Posted by HRTROB

How long did you guys set the alarm delay? I keep getting false alarms when tipping in the throttle after an upshift when the AFR jumps to 18:1 for a split second. I currently have it set at 550ms.

I don't think that is a delay issue, that is a setting issue. I would not worry about setting any alarms prior to the gauge seeing boost. If you are indeed seeing 18:1 at 1 psi, then I would work on your tune and your tip in enrichment.

HRTROB · 04-25-2014, 12:08 PM

Quote:

Originally Posted by King Tut

I don't think that is a delay issue, that is a setting issue. I would not worry about setting any alarms prior to the gauge seeing boost. If you are indeed seeing 18:1 at 1 psi, then I would work on your tune and your tip in enrichment.

I think the problem is with the alarm delay setting because when I release the throttle for an upshift, AFR jumps to 18:1 and when I tip in the throttle, AFR is still at 18:1 before it goes back down.

I can't set the alarm threshold higher than 18:1 at 0 boost because the next setting adjustment is at 0.3 bar (4.35 psi). If I set it at 18:1 at 0 boost, the threshold will be sloping down to whatever I set it at 0.3 bar (11.7 in my case). That means I won't get any alarms from 0-4 psi.

King Tut · 04-25-2014, 12:33 PM

Quote:

Originally Posted by HRTROB

I think the problem is with the alarm delay setting because when I release the throttle for an upshift, AFR jumps to 18:1 and when I tip in the throttle, AFR is still at 18:1 before it goes back down.

I can't set the alarm threshold higher than 18:1 at 0 boost because the next setting adjustment is at 0.3 bar (4.35 psi). If I set it at 18:1 at 0 boost, the threshold will be sloping down to whatever I set it at 0.3 bar (11.7 in my case). That means I won't get any alarms from 0-4 psi.

It has been awhile since I messed with my AEM Failsafe, so I forgot the resolution is that poor. I still think your tip in enrichment could be improved in your tune, but if you don't want to see that alarm then go ahead and up the delay till you don't see it anymore. You really only want it alarming you when there is clearly something wrong, not border line wrong, which would mean more than a second worth of unsafe AFR/PSI.

SoCal80six · 03-28-2016, 07:10 PM

Can anyone explain to me how to install aem afr/Boost wide band failsafe. Just need a little help trying to wire to my ecu.

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brznoob · 08-14-2016, 12:06 PM

+1 Also need help with this

04-14-2014, 12:37 PM	#44
Reaper in orbe terrum non visi Join Date: Jan 2014 Drives: violent Location: Mountains Posts: 1,747 Thanks: 279 Thanked 762 Times in 446 Posts Mentioned: 62 Post(s)	Post a picture of the coil wire if you get it. I still need to wire mine in. Right now its just wired up as a wideband for the ecm. Sent from my SAMSUNG-SGH-I747 using Tapatalk __________________ I have E85 where there isn't E85, that's my secret. http://www.ft86club.com/forums/showt...t=reaper+build

04-14-2014, 06:24 PM	#45
OjiGeorge Senior Member Join Date: Jul 2012 Drives: White 2013 FRS Location: Langley, BC Posts: 450 Thanks: 441 Thanked 146 Times in 92 Posts Mentioned: 6 Post(s)	Will do. Looks like the car won't be going into the shop until next week so should have some time to play around with it this week. @AZFA20, does the gauge need to be configured for 2 revolutions for every signal? Sent from my SGH-I747M using Tapatalk Last edited by OjiGeorge; 04-14-2014 at 07:02 PM.

08-14-2016, 12:06 PM	#52
brznoob Member Join Date: Feb 2014 Drives: 2014 subaru brz Limited 6mt Location: San Antonio, TX Posts: 52 Thanks: 19 Thanked 30 Times in 15 Posts Mentioned: 1 Post(s)	+1 Also need help with this __________________ 2014 BRZ Limited 6MT World Rally Blue. Mods: Tomei UEL header, Tomei overpipe, HKS Dual Resonated Front Pipe, Stock Catback, JR C30 kit with HBP, DW700cc injectors, DW 65C pump, Delicious Tuning FF kit, Forrester XT oilcooler, ACT HD Street clutch, ecutek #mototuned.

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04-14-2014, 04:23 AM	#43
OjiGeorge Senior Member Join Date: Jul 2012 Drives: White 2013 FRS Location: Langley, BC Posts: 450 Thanks: 441 Thanked 146 Times in 92 Posts Mentioned: 6 Post(s)	Ps: I do appreciate your solution, thank you for posting it

04-19-2014, 05:55 AM	#46
OjiGeorge Senior Member Join Date: Jul 2012 Drives: White 2013 FRS Location: Langley, BC Posts: 450 Thanks: 441 Thanked 146 Times in 92 Posts Mentioned: 6 Post(s)	Before I go into tapping one of the coils leading into the ECU harness, has anyone else actually used @AZFA20 method with the AEM fail safe with seamless success, and no worries about messing up the ECU/motor? Don't have the funds burning a hole my my pocket to be a pioneer here...

04-25-2014, 06:52 AM	#47
HRTROB Senior Member Join Date: Dec 2012 Drives: Toyota 86 Location: Manila, Philippines Posts: 458 Thanks: 144 Thanked 271 Times in 140 Posts Mentioned: 13 Post(s)	How long did you guys set the alarm delay? I keep getting false alarms when tipping in the throttle after an upshift when the AFR jumps to 18:1 for a split second. I currently have it set at 550ms.

03-28-2016, 07:10 PM	#51
SoCal80six Senior Member Join Date: Aug 2015 Drives: Asphalt frs Location: San diego, CA Posts: 354 Thanks: 226 Thanked 80 Times in 62 Posts Mentioned: 1 Post(s)	Can anyone explain to me how to install aem afr/Boost wide band failsafe. Just need a little help trying to wire to my ecu. Sent from my SM-G935T using Tapatalk

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