Cruise control swap with EJ22 conversion

[msewalson]

I currently have an EJ22 in my Vanagon Syncro and would like to install the cruise from the donor subaru. Wondering if anyone on here has done this or any threads documenting the install. My main hang up is the wiring and what would be needed and what can be eliminated from the cruise system.

 

Thanks,

Matt

[Legacy777]

Matt,

Do you know what year your EJ22 is from?

 

My suggestion on adding cruise would be to try and find a cruise control setup on a mid 90's Impreza.  They made an "add-on" kit which meant its interaction with the ECU was relatively limited or none at all.  You would need to add things or tie into the existing brake switches, etc.  Here is the install kit for the mid-90's Imprezas.   This may help in determining what all you need and how to make the wiring work.

 

http://main.experiencetherave.com/subaru_manual_scans/FSM_Scans/1997_Impreza_Cruise_add-on.pdf

 

I actually grabbed a cruise throttle cable from an Impreza a couple years back when I was in the Denver area and was finally able to install the cruise in my Outback sport.

[Gloyale]

Does your vanagon have a VSS hooked up?  I know many vanagon owners do not use a speed sensor with the EJ swap.

 

That is the one signal that is shared by Cruise and Engine computers so you will need it.

 

The other wire you need from the ECU is Tach signal (Black/blue wire)

 

Everything else for the Cruise computer is seperate 

 

You need:

VSS signal

Tach signal

Brake light signal

2nd brake switch (normally closed......opens when you hit brakes.....loops through clutch or "N" switch)

Clutch switch (loops with brake circuit)

Main "on" switch

"set" and "resume" switches.

12v+

Ground

[el_freddo]

I've used this kit twice now with great results: http://www.ebay.com.au/itm/Cruise-Control-Ap60-Diy-Vacuum-Actuator-Automatic-Universal-Fit-/251487481199?pt=Caravan_Parts_Accessories&hash=item3a8dd26d6f&_uhb=1

 

The first application was with my EJ22 converted L series.  I've used the supplied magnets on the tail (prop) shaft for the Vehicle Speed Sensor pick up, works well.

 

The other application was on my mother inlaw's Brumby.  I'll be looking at adding it to my Brumby once it's on the road.

Cheers

Bennie

[el_freddo]

I'll also add that the above kit is for an "auto" - but a second brake switch on the clutch pedal is an easy conversion to make it a "manual" kit rather than buying their kit.

Cheers

Bennie

[Numbchux]

I also recommend an aftermarket, universal kit. It's going to be much easier to interface with your setup...

Edited August 4, 2014 by Numbchux

[msewalson]

Wow,

Just realized I have to many forums to keep up with. This project was put on the back burner when I added a poptop to my van. It's now time to revisit this project and hopefully get a functioning cruise control system in my van. I guess I'll answer some of the questions. First off the engine was pulled from a 98 Legacy, it's a single port EJ22. I'm using a VSS which is installed at my rear CV joint. I'm planning on adding a second VSS which would be mounted onto my speedometer and used only for the cruise control. I have pulled a number of items off of a 98 Outback that had cruise installed. Items I have are cruise control module, brake and cloth switches, cruise control pump, cruise control actuator and main on/ off switch. I purchased an after market controller because mounting the Subaru control switch would be tough since its originally mounted on the steering wheel. I think my biggest hurdle will be the wiring. I have considered going aftermarket kit route but feel I could get it accomplished using Subaru parts and save a few bucks, actually a lot. 

[msewalson]

 

Here's the wiring schematic for a 98. I have limited experience working with and reading wiring schematics. My some what educated guess on what is need and what can be eliminated is as followed. 

 

Eliminate the trans control module, used for AT models only and not needed for my setup. Not sure on its function though.

 

Eliminate the check connector, data link connector and wiring to OBD II port. If wiring to the OBD II port is needed then I can always add that to my port but not sure why it would be needed. Also unsure on the functions of the check connector and data link connector.

 

Eliminate horn relay wiring since I'm not using the factory Subaru cruise control sub switch. I believe this is only used to supply 12v to the sub switch.  

 

Add only brake switch which will require a special mount to be integrated with Vanagon brake. I might be able to tap into an existing brake light wire and avoid needing to use the brake switch. If brake switch is used it will need 12v power.

 

Add main on/off switch to Vanagon dash. Will need to be supplied with 12v.

 

Add sub switch which is an after market Audiovox part number 250-3593. http://www.rostra.com/aftermarket-cruise-control-switches-by-rostra.php  Will also need 12v supplied to it.

 

Add second VSS which will be mounted to the back of speedometer. 

 

Add wiring to cruise control pump which will be installed in engine comport near actuator. 

 

Cruise control module will be installed under the dash.

 

All 12v will be pulled of ignition.

 

Would appreciate any feed back or thoughts from wiring experts. 

 

Thanks,

Matt