RocketSkates14

iTrader: (1)

Anyone notice the ground to the plastic? nice write up though...

Imprezme

iTrader: (1)

Kudos to you brahhhh

mrwickd123

lol the bolt threads into a metal bracket

Thanks boss!

ignitionr34

iTrader: (1)

Do i need a tatrix cable for this? I am tuned with a COBB

beetle_orange

iTrader: (58)

this is just a gauge to read boost and afr.

Phenix8913

iTrader: (1)

This is an awesome write up, it helped me a lot. Thanks!

strato614

iTrader: (1)

Great write up!

I'm going to try to use this gauge to log AFR with Evoscan, I hear it's a pain. I have a question about the white wire. Once connected to the green (2014), does the failsafe bypass the rear O2 and log the wideband instead? Or is the failsafe reading the rear O2?

Basically, what happens when you wire the white to the green? Thanks

mygsx

iTrader: (7)

Thanks for the write up. I will be doing this tomorrow to a AEM 30-4110 series kit. Thanks!

Jdmracer

Thanks for the post!

Rsjgp

RPM wire on Evo X

To wire the gauge to receive RPM signal
You will need to tap into the ECU harness
Pin 4 is Ignition coil #1, tap the AEM RPM wire into Pin 4 wire

i have attached the Pinout table to this post
you can google Evo X ECU wires for colours but they may change between year models.

--------------------
this will work for any guage / device that has rpm
I used to have an EVC 6 wired in here for controlling boost via rpm
I now use a GS 3Port boost controller
-_-------------------_-

open the AEM software to calibrate the RPM
this is done by changing the Pulses per Revolution
change setting while engine is running to match rpm displayed in software
on the Evo X 0.5 is correct.

above is only necessary if implementing the failsafe functions
im not sure how to implement boost cut via 3 port

attached a copy of the EVO X ECU pin out diagram

AEM Update (although it appeared to work i will be disconnecting the coil signal)

IMPORTANT INFORMATION REGARDING USING THE RPM INPUT FOR THE WIDEBAND FAILSAFE GAUGE

The AEM Wideband Failsafe Gauge’s (WBFS) engine speed (RPM) input requires a clean square wave tachometer-type signal in order to log engine speed properly.

The voltage of this signal must NOT exceed 16V or go below vehicle ground (zero volts.)

Here are examples of signals that WILL NOT work and could cause damage to the gauge:

• Crank sensors
• Ignition coil primary (positive or negative terminal)
• Injector signals

Here are examples of suggested RPM input configurations:

• An MSD GMR Pickup (P/N #8918) connected to: coil primary (inductive or capacitive) or fuel injector*
• An aftermarket multi-strike distributor tachometer output (for example: MSD-6AL, Crane Hi-6, etc.)
• OEM tachometer signal (0-12V square wave—verification with an oscilloscope recommended)

*Note: Install the GMR Pickup as per MSD instructions; the GMR is generally installed on the “+” side of referenced signals.

If a signal’s waveform is unknown and cannot be verified with an oscilloscope, it’s safest to assume that the signal won’t work and could possibly damage the gauge. In these cases, it is suggested that the MSD GMR Pickup be utilized to pick up off of an ignition coil.

-_-------------------------_--------_-

I think a good idea is to run wires from the engine bay via an existing hole to the cabin.
If you look in the absolute right hand corner of the engine bay near the abs hard lines you will see a Gromit that secures black plastic containing wires.

Slide the Gromit forwards from off the car to get more room to pass wires through.
It's hard to move the Gromit but well worth it.
In the cabin it comes out at the top of the back of the glove box

Try using a hard plastic strip like electricians use to feed / route cables
i used a plastic coat hanger broken into pieces then taped black plastice tube i ran wires and boost line in through the grommet.

Recommend to remove strut bar for access
May be opposite side for Left hand drive vehicles

I am logging AFR to a Cobb AP
It won't matter if you use Cobb or open source, it's still data from AEM white wire to the ECU via O2

I confirm this data logging works to the cobb AP
I also earthed brown and black wires together, used cabin fuse box mount bolts
used 5 AMP fuse in the Add-a-fuse

tested power / earth using multimeter - all good

Rsjgp

No, OP is using Tactrix to log to external source

MV auto

can someone confirm I understand properly?
You send analog 0-5V output from AEM wideband into rear O2 signal pin? (of course rear O2 sensor is not plugged in anymore)
ecm will properly see that 0-5V input?

thanks!

Rsjgp

Rsjgp

MV auto

thanks!
and does anyone knows if I can do the same with a few other input? do original ecm have free input? (I can add terminal if necessary)
might be looking to add a boost input, or a fuel pressure input. mostly only for logging purpose... but would be great to have it straight into ecm.