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Eurowise Plug and Play Engine Harness - VR6/1.8t/ABA/AEG/TDI/FSI
Eurowise Plug and Play Engine Harness - VR6/1.8t/ABA/AEG/TDI/FSI

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Our Price: $475.00

Quantity in Stock:2
Product Code: EW1390

Do you have an engine harness core?:

Engine model :

OEM Style Friction tape?:





Click Here for the Harness Form:

Ship Harness To:

Eurowise North
attn: Harness Core
123 Rugg Road
Schuylerville, NY 12871

The average turn around time is anywhere between 2-4 weeks, once we receive your core harness. If you do not have a core harness to send in, we can not provide an approximate build time due to fact that we will need to source a core harness for you. Please be patient and feel confident that we will finish your harness as fast as we possibly can. If you have any questions, please email us at: info@eurowise.com
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Our standalone harnesses aren't just for the MK1 Chassis. You can install VW motors in virtually any car. Honda, Toyota, Lawn mowers, Ferrari, Rabbit, MK2 Sirocco & MORE. Fabrication of course is always required for the engine mounts but the wiring is simple.

Harnesses come bare, however, we can supply Tesa Style Cloth Tape. All our standalone engine harnesses come standard with battery leads, relay holders, and integrated relays. Relays are extended so they can be positioned next to the main ECU connector so it stays dry. OBD2 data link connector (when applicable).

These are some of harnesses we make, if you don't see it listed just send us an email at: info@eurowise.com

-3.6 VR6
-5 Cylinder

- Using the factory twist lock connector the harness plugs into and the rest is cake walk!
- Harness will work on any make or model as long as used on OBD1 / OBD2 VR6 motors
- OEM friction tape wrapped (optional)
- OEM connectors
- OBD 2 Diagnostic Connector Wired in (OBD 2 only)

We stock most harnesses but if you have your donor motor harness than that saves you money.
Ship us your good un-cut harness.

We bench test all harnesses at our facility to ensure proper operation before shipping. If your engine or hardware has issues prior to installing our harness or you haven't verified the engine runs properly please keep in mind it can be difficult for us to diagnose your prior mechanical issues ( timing, cam, crank sensor, ignition system etc.) We can offer troubleshooting at an additional cost vs taking your car to a shop to repair.

We highly recommend always replace all vital sensors needed to run the engine when doing a build to ensure parts are in functional order.

To Purchase Troubleshooting help see link below:


Q: I have purchased your MK1 VR6 swap an have successfully installed a 97 VR6 in my 82 Caddy. Now comes the difficult part, the wiring. I know you offer a plug and play wiring harness and I want one. I have a few questions though, Do you first need my harness to build it or do you have harnesses in stock?

A: A core will need to be mailed into the shop to have the harness modification completed. Unfortunately these harnesses have become hard to come by, and we do not have any modified harnesses in stock. *** DO NOT ORDER IF YOU DO NOT HAVE A CORE TO SUPPLY. ***

Q: All of the secondary air components have been removed, does the harness also have the wiring removed for these components?

A: Yes the harness is for a deleted emissions system

Q: I am using all vdo gauges does your harness supply me with a tach signal and speed signal?

A: Speed signal you will have to obtain the correct cable for the transmission which is separate from the engine harness. The tach signal is a little more tricky. It requires a converter to get the tach signal from a 4 cyl - 6 cylinder to work properly. We don’t have a solution currently for this

Q: Do I need to send in the OEM fuse box?

A: No, it does not use factory fuse box so you do not need to ship us the entire fuse box.

All MK4 1.8t/tdi/VR6 or cars with drive by wire throttle pedal we need the harness that goes to the pedal. If we don't receive in the core return we will charge an additional $25+ for the parts needed to build your harness.


Other Important Info:

Always send both sides of the ECU harness.

A MK3 harness will only have one plug so the connector from the ecu to the large round twist lock connector is all we need. We do not need the harness from the male side of the twist connector on ABA and VR6 MK3 style harnesses. On MK4 we also need both sides of the ECU. The left side is typically the engine side and the right side is fuse box / 02 sensor / throttle pedal side. We cannot accept just the left side of the ECU. If you do not have both sides we can always source but that is an additional fee.

As a core isn't required, we highly recommend you provide the one that matches the ECU and motor you are swapping. This simplifies the process of looking for a known good harness on our end which sometimes can add 2-4 weeks to the harness construction process.

We require the entire wiring harness from ECU to fuse box only. In later models like MK5 R32 the engine body harness and engine harness is all integrated. We need the ECU connectors with the wires coming out of both sides of the ecu. Along with the wires going to the throttle pedal as well.

If you have an MK4 and have not removed the immobilizer from the ECU, the car will not start. This blocks the ecu from starting when the key/ignition cylinder/ instrument cluster/ ECU is not all simultaneously recognized. We offer this service for $150 so please add these to the notes when you fill out the form online so we can perform the operation. It will not start without an immobilizer deleted.
Before using harness ensure motor has a quality ground and that starter operation is good. If a bad engine ground is present the harness will act as a ground and MELT the chassis/engine ground circuit in the harness. Before putting any of the harness in simply "crank" the engine and make sure it cranks "normal"

When hooking both harness battery leads up be sure to fuse the leads AT the BATTERY with 30 amp fuses for safety of harness and car in case of chaffing or shorts.
Please contact us at 704-559-8100, ext.Online Sales or email us at info@eurowise.com, for any questions or special requests.


Eurowise parts, are sold for off-road use only. All performance modifications and installations are at the customers own risk.Eurowise Performance Fabrication Inc. or www.eurowise.com hold no responsibility either implied or otherwise for mechanical, electrical or other failure when using any aftermarket performance products. Items sold for off-road use only are illegal in many states and provinces and are intended for racing vehicles which may never be used on a public road.

By purchasing any aftermarket performance product, the customer takes full responsibility for any use, and/or misuse of the product and agrees that Eurowise Performance or www.shop.eurowise.com holds no responsibility for any consequences, legal, or other, of such use and/or misuse.

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 8 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Excellent job and even better customer support!! July 22, 2019
Reviewer: Ross Mueller from Eau Claire, WI United States  
I am extremely impressed with the quality work that they put into the harness and how fast they were able to get it back to me. That is not even the best part. The customer support that came with them was outstanding! They answered all of my questions at anytime of the day or night. This made the wiring process way easier than I had ever expected.

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  0 of 0 people found the following review helpful:
4 of 5 Nice package July 22, 2019
Reviewer: Michel Fontaine from Rougemont, QC Canada  
Good product

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  0 of 0 people found the following review helpful:
5 of 5 Excellent product and service! September 10, 2018
Reviewer: Ryan from San Diego, CA United States  
From receiving a confirmation that my old harness had shown up to a personal call to walk me through some of my options. I had some questions that were answered.

Excellent communication and well done product!

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  0 of 0 people found the following review helpful:
5 of 5 Above and Beyond Expectations May 27, 2018
Reviewer: Hunter Amundsen from PETALUMA, CA United States  
The guys at eurowise continue to go the extra mile with every order I place, and their custom harness work is no exception. The whole process, from me shipping them my core all the way from California, to them sending the finished product back, took half the time I had imagined. And they even mended my "cut in half" harness. I'm very pleased with the finished product and excellent service, and I'll continue to use them for all my VW needs.  Can't wait to install the harness! Thanks guys

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  0 of 0 people found the following review helpful:
5 of 5 Turned over first try. No headaches April 27, 2018
Reviewer: Calvin Berube from Edmonton, AB Canada  

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