AEM Wideband Failsafe Gauge

[King Tut]

Originally Posted by OjiGeorge

My tuner is telling me that running the UEGO wideband from my AEM failsafe to the ECU is just an over complication of things. That Ecutek already has enough safety features when tuned correctly. Am I just being overly paranoid?

I don't think over complication is the correct choice of words. It sounds like you have a lazy tuner who doesn't want to write the custom tables to be able to utilize the more accurate sensor. It doesn't matter how many safety features the ROM has, I would rather have the more accurate AFR data from the wideband sensor especially when you are down in the 11:1 AFR range where the OEM front sensor is not intended to read.

[OjiGeorge]

That's what I was thinking, a more accurate reading is going to be better. That being said I know little on tuning. Just bought a book so I can learn some of this stuff to fill the gap in my car knowledge. My tuner isn't using rr7 yet. Hopefully it won't be too expensive down the road to add this feature. Just want to keep the car safe. I'm planning to install a grimm Speed ebc so I can set up boost cut if the wideband detects overly lean conditions.

Sent from my SGH-I747M using Tapatalk

[Reaper]

I'm still looking for an rpm reference for the frs if anyone could help.

[King Tut]

Originally Posted by Reaper

I'm still looking for an rpm reference for the frs if anyone could help.

If you look at some of my posts in other AEM Failsafe threads, I have listed the two wires that you can tap into for the RPM signal. I have pictures of the wire I used as well. Here are a couple:

http://www.ft86club.com/forums/showthread.php?t=37868
http://www.ft86club.com/forums/showt...t=28800&page=4

[Reaper]

Originally Posted by King Tut

If you look at some of my posts in other AEM Failsafe threads, I have listed the two wires that you can tap into for the RPM signal. I have pictures of the wire I used as well. Here are a couple:

http://www.ft86club.com/forums/showthread.php?t=37868
http://www.ft86club.com/forums/showt...t=28800&page=4

yes i searched and saw those. My FRS does not have that. There is an empty hole next to my ECU. I believe i can use pin 15 A35 but im having a little trouble determining which one that is.

[King Tut]

Originally Posted by Reaper

yes i searched and saw those. My FRS does not have that. There is an empty hole next to my ECU. I believe i can use pin 15 A35 but im having a little trouble determining which one that is.

I know in one of my posts I listed what wire color that one should be according to the BRZ wiring guide PDF someone posted.

[AZFA20]

Originally Posted by Reaper

yes i searched and saw those. My FRS does not have that. There is an empty hole next to my ECU. I believe i can use pin 15 A35 but im having a little trouble determining which one that is.

Just use a coil reference. IIRC I used coil #2. I can't remember the wire color off the top of my head. I would have to pop open the wiring diagrams or walk to the shop and look but I am too lazy right at the moment haha. I'll be out by the car later if you still need it.

Edit...... I peeled myself from the computer screen. A36 Pin 10 yellow/red stripe, coil #2. You can use whatever one you want though.

[OjiGeorge]

Originally Posted by Reaper

yes i searched and saw those. My FRS does not have that. There is an empty hole next to my ECU. I believe i can use pin 15 A35 but im having a little trouble determining which one that is.

I've got a Canadian FR-S, and there is no second ECU box... To make things even more fun, there is no pin 15 in A35. I went around all day trying to find someone competent enough to direct me to a local place I could buy a pin that would fit, and had absolutely no luck. I ended up jamming the wire in there and taping it down until I can find a proper pin.

Does anyone know where we can find pins for our harnesses? The dealership parts counter had no idea. I believe A35-15 is 20 gauge. A de-pinning tool would also be useful because I'm sure to mess it up.

For those having difficulty figuring out what plug is which, just look at the wiring profile compared to the picture of the plug and you will figure it out pretty quick. I tried to use the FSM, but that thing is Godzilla. On the ECU, A35 is the second plug from the firewall, followed by A34. You can see a nice pic of this in the thread about hooking up your wideband to the secondary O2 sensor (if you are on RR7). http://www.ft86club.com/forums/showthread.php?t=57902

[OjiGeorge]

Other issue that I'm having is that the supplied USB extender cable seems to drop connectivity while logging. I think it's fitting loose in the laptop's USB port.

Has anyone else experienced this issue? It's a relatively new laptop, low use on it's USB ports, and I've tried all of them. I'm starting to think that the extender cable is just junk and I should go buy another.

[rb6freak]

Originally Posted by OjiGeorge

Other issue that I'm having is that the supplied USB extender cable seems to drop connectivity while logging. I think it's fitting loose in the laptop's USB port.

Has anyone else experienced this issue? It's a relatively new laptop, low use on it's USB ports, and I've tried all of them. I'm starting to think that the extender cable is just junk and I should go buy another.

I use the extension and a single USB 3.0 port on a tablet with a 4 port hub for ecuTek cable, AEM and license key. No issues.

The wire is very tiny, smaller than 20 gauge I believe. I spliced mine very carefully with a razor blade and steady hands.

[OjiGeorge]

I'm going to try a hub. Right now it feels like a physical issue. The USB doesn't quite fit in snugly, and if it gets bumped connection is lost.

[AZFA20]

Originally Posted by OjiGeorge

I've got a Canadian FR-S, and there is no second ECU box... To make things even more fun, there is no pin 15 in A35. I went around all day trying to find someone competent enough to direct me to a local place I could buy a pin that would fit, and had absolutely no luck. I ended up jamming the wire in there and taping it down until I can find a proper pin.

Does anyone know where we can find pins for our harnesses? The dealership parts counter had no idea. I believe A35-15 is 20 gauge. A de-pinning tool would also be useful because I'm sure to mess it up.

For those having difficulty figuring out what plug is which, just look at the wiring profile compared to the picture of the plug and you will figure it out pretty quick. I tried to use the FSM, but that thing is Godzilla. On the ECU, A35 is the second plug from the firewall, followed by A34. You can see a nice pic of this in the thread about hooking up your wideband to the secondary O2 sensor (if you are on RR7). http://www.ft86club.com/forums/showthread.php?t=57902

Why didn't you use the wire I mentioned literally the post right before yours stating you do not have the tach signal wire as the BRZs do? The Canadian models are not unique in that regard. the FR-Ss do not have the additional module (Certification ECU Assembly) that people conveniently pull the RPM signal from because the majority of FR-S minus the 10 series do not have the push button start and active entrance option. You really should not be stuffing wires into the ECU like that unless you are ok with the possibility of shorting something out. It's the one piece of hardware in the car you should not be half assed about. They aren't exactly laying around in junk yards yet to grab a new one should something fry it.

[King Tut]

Originally Posted by OjiGeorge

Other issue that I'm having is that the supplied USB extender cable seems to drop connectivity while logging. I think it's fitting loose in the laptop's USB port.

Has anyone else experienced this issue? It's a relatively new laptop, low use on it's USB ports, and I've tried all of them. I'm starting to think that the extender cable is just junk and I should go buy another.

I never had any issues using the AEM Failsafe USB extender cable, and I had tons of problems with my laptop and EcuTek.

[OjiGeorge]

Originally Posted by AZFA20

Why didn't you use the wire I mentioned literally the post right before yours stating you do not have the tach signal wire as the BRZs do? The Canadian models are not unique in that regard. the FR-Ss do not have the additional module (Certification ECU Assembly) that people conveniently pull the RPM signal from because the majority of FR-S minus the 10 series do not have the push button start and active entrance option. You really should not be stuffing wires into the ECU like that unless you are ok with the possibility of shorting something out. It's the one piece of hardware in the car you should not be half assed about. They aren't exactly laying around in junk yards yet to grab a new one should something fry it.

Received mixed feedback when asking around about tapping into a coil. I dont know enough about wiring to try something from a single forum post that doesn't have any confirmation. That said, I agree, stuffing the wire in was not an ideal solution, I was pressed for time and made an attempt. Just wanted to see if I was able to pull an RPM signal. At the end of the day the RPM signal didn't come through A35-15 as expected so I will probably tap into one of the coil wires. Car is going into shop tomorrow, so will also ask them what they think.