MR.johnson

it was talked about in the drag radial thread and i just figured it should have its own thread.

those that are using your abs from the rear abs ring for boost control what did you do to make it work. settings/wiring/ect.


heres a thread on the aem forum i found.

http://www.google.com/url?sa=t&rct=j...be7aAhFmM7YTfg

061000rr

iTrader: (2)

i have heard you can jump a jumper in the aem and i have heard you have to buy the msd signal converter. definitely in for a for sure how to! maybe how to on all versions of aem? v1 and v2 or through the AQ1?

061000rr

iTrader: (2)

and also if anyone knows how would you set up your aem to do ground speed and wheel speed?

MR.johnson

O **** nice call. That would be sweet to use the vss and abs for trac.

FelixTuning

its best to use the msd signal converter ,
it will do boost by speed ,and if have the v2 box it will do ground speed control .
just need to cal the signal.

GodFather of Boost

It would make sense to have to move the jumper in the ecu but ive never did. just one wire to ground the other to vss.

0xenocron

Or you could use a Digital (3 wire) sensor, make a bracket and wire this piece into the speed sensor input while still using the ABS ring to do your pulses.

We have these ready to do actually...just havent had a time to put them up yet.

tepid1

Will the Motec DMC converter work for the AEM input?

It's what I'm doing for rear speed via the ABS sensor.

Divers

You can use the oem abs sensor with the MSD converter. It converters the mag signal to a square hall signal. They are like $65 from summit. You can use this method on any ecu that allows you to configure the tooth number to calibrate the speed. Otherwise you would need to change the number of teeth on the wheel to get the correct speed.

vavoom

Do you have a part # for this converter?

chapnutz1

Ive gotta track down a rear disk hub with abs for my SE-R

j-bird20

Funny this comes up cause i was going to make a thread. I have a EF with complete DA suspension in the back(rear disks brakes). How would i go about getting my rear wheel speed to work cause i pretty sure it does not have a ABS ring?

061000rr

iTrader: (2)

either machine hub to fit a ring or buy integra 94-01 hubs and make a bracket to hold a sensor

AROD

I have drums in the rear, i bought a hall sensor, like the one chris, Xenocron has and added 4 magnets on the drum. Power , ground, VSS and calibrated the aem with the car on a dolly rear wheels spinning had a GPS and calibrated to read the right VSS. Works great now!

sanman000719

advantages to this??? because i have been thinking that my lack of short track is due to using the speed sensor in the tranny for a while now

1hatch2nv

in for more info on this.....did the conversion on our car and could not get it to read right so the car was all over the place.....Felix call me when you get a chance bro

061000rr

iTrader: (2)

huge advantage! if you do boost by gear or speed and you spin the ecu thinks your going faster than you really are and adds more boost witch results in more spinning. by measuring ground speed vs front wheel speed you can see in your logs were your spinning. really allows for much better boost control. you no were you can add more boost or were you need to back some off

061000rr

iTrader: (2)

do you have oem rear wheel abs rings or aftermarket? i have had alot of problems on hondas at the dealership with abs codes due to aftermarket axles due to the rings are in very poor shape and dont give off a good signal

BrowNKiD

I have been trying to find information on this for the longest time... Does anyone have the full install information, or a wiring diagram and the msd part number?

061000rr

iTrader: (2)

please tell me if im wrong so i dont give false info but it looks like you can use either 6304 or 6302. you would just wire the signal wire from the abs to one of the input wire (white or green) and then run either the brown/white or brown/green to the ecu. if you buy the 6304 you can use it to convert up to 4 wire signals from the way it looks.

061000rr

iTrader: (2)

this being said you could measure all 4 wheels with stock honda sensors if your ems can handle it. you could then ck for 1 wheel spinning more than the other or if one tire is trying to lock up under bracking. could be very useful for seeing if you diff is working or you have a caliper working harder than the other

sanman000719

can you use one sensor to do this, and whats the average cost

i mean if its cheaper to go s300 and bbg then thats my route

Rtype16

Okay thought I would respond to this one. Here ya go.

This is if you are using a Series 2 EMS with version 24 or higher.

Sensor Wiring:
It depends on what type of sensor you will be using a Magnetic type of sensor or Hall sensor.

The stock Transmission will be using a 3 wire Hall sensor.(5 or 12 Volt power, Timing ground and signal)
The ABS sensor will be a 2 wire Magnetic Sensor.(Timing Ground and Signal)

So for the ABS sensor use the timing ground from the Series 2 and T3 or T4 for the actual signal. Most likely you will want to use T3 as this is what is commonly used for VSS on Hondas. However there will already be a wire in this location from the stock Transmission VSS just remove it and install the new one.

EMS Jumper Change
For some this did not have to be changed however this is what you want.
If you have never opened a EMS box do not do this and ask someone for help.
Find JPT3 or JPT4 these are timing inputs 3 and 4. This is the configuration for Hall and Mag sensors.
Jumper location 1-2 Hall
Jumper location 2-3 Mag

AEMTuner Software Adjustments
Open up your calibration and go to the top "Display" drop down.
Scroll down to "Display Explorer" and click this open
Click on the "AEM Series 2 EMS Full List"
Click on "Setup"
Click on "Sensors"
Right Click on "Vehicle Speed Sensor" and add all. This will pop up two menus on your display. Options VSS and Channels VSS.

To confirm that it is hooked up this way, open AEMTuner and connect to the ECU. With the wheel turning, you should see the Vehicle Speed Input parameter alternating between ON and OFF. If this is happening, the VSS is wired to the Vehicle Speed input, if not, go back and recheck the wiring.

The edge must now be defined. The falling edge is typically better with magnetic sensors, whereas hall effect sensors it does not matter. In the case where you are unsure of what type of sensor is being used, set Speed Falling Edge to ON. The EMS needs to be told that Vehicle Speed is the VSS. The option VSS Input is were you select the channel that the VSS signal can be found. Set VSS Input to Vehicle Speed.

Now, the sensor should be scaled so it reads the actual vehicle speed. Display the Vehicle Speed parameter and start adjusting VSS Calibration to scale the function. If 256 is not enough, set VSS Cal * 8 to ON. This will allow more adjustability.

Sorry I don't have the actual calibration for the VSS calibration with me.

tepid1

Using ABS if far superior due to the greater resolution. 4 magnets just isn't that great. I tried that and didn't like it. Just my opinion to anyone else trying to do this.

061000rr

iTrader: (2)

but can you wire up both vss in the trans and from a abs sensor? or will the aem v2 only read 1 vss?