Integrated Engineering 058 1.8T Coil Conversion DIY
In this DIY writeup we will go over the parts, tools, and steps needed to convert your 058 1.8T bolt down coil packs to the newer FSI/TSI coil packs. The FSI/TSI coilpacks allow you to run a larger spark plug gap, while maintaining a strong spark output. Testing has shown a smoother idle with these coilpacks, increased off boost power, and in some cases improved fuel economy. This DIY will follow the process from start to finish on an early AEB 1.8T engine.
Section 1.
Parts Required
1- Integrated Engineering square coilpack adapter set
1- Integrated Engineering coilpack conversion harness kit
4- OEM 2.0T FSI coilpacks or 4-OEM 2.0T TSI coilpacks
Section 2.
Required Tools
5mm hex key (allen) wrench or socket
Ratchet with 10mm socket
Phillips screwdriver
Section 3.
Install Steps
This kit needs to be installed by a professional or by an experienced technician. Integrated Engineering is not responsible for any damage caused by incorrect installation.
Before you begin:
Be sure to lay out and inventory all new parts for correct application/quantity and that you have access to proper tools for installation.

Step 1:
Gain access to the coilpacks and ICM (located on top of the factory airbox). Remove palstic engine cover to gain access to these parts.
Step 2:
Remove the ignition control module (ICM) from the airbox. There are two phillips screws holding it in place. Unplug both connectors from ICM. Install small ICM jumper harness in place of ICM. The red plug goes to the left harness, and the black plug goes to the right harness. When finished, replace the factory plastic cover.
Step 3:
Unplug factory coilpacks. There is a metal connector that needs to be slid up to release the plug from the coilpack. Remove coilpacks. You will need a 5mm hex key to remove the eight bolts that hold the factory coilpacks to the valve cover.
Step 4:
With all the factory coilpacks now removed, install the Integrated Engineering coilpack adapter plates in their place. Use the 5mm hex key to snug up all 8 included bolts holding the coil pack adapters in place.
Step 5:
Place the new 2.0T coilpacks in the spark plug holes. Do not press them in all the way yet- you may need to move them around to plug in the new harnesses. At this point, you have two options for the harness orientation, we will cover both options.
Option A:
Exhaust side
The coilpacks can be run with the plugs on the exhaust side of the engine (like the factory coilpacks.) This will require you to tuck the adapter harnesses between the coilpacks. This is recommended if installing the factory engine cover, or a coilpack cover (available separately.)
Option B:
Intake Side
You can also run the coilpacks with the plugs on the intake side of the engine, and tuck the adapter harnesses beneath the fuel rail or intake manifold. If you choose this method, you will need to remove the 10mm bolt that holds the coilpack ground wire to the valve cover in order to relocate the harness.
Note: If installing coilpacks with plugs on the intake side, you will need to relocate the coilpack ground wire. It may need to be extended depending on how you run the harnesses. Make sure coilpack ground is securely bolted to the valve cover.
Step 6:
Once you have determined which coilpack orientation is best for you, plug the black end of each adapter harness into each coilpack. The red ends will connect to the factory harness. Make sure each connector “clicks” into place.
Step 7:
Push all coilpacks down onto the spark plugs, ensuring they are tight in the holes.
Step 8:
Reinstall all engine covers. Check to make sure all wiring connections are secure. You will now be able to start the engine and take advantage of a stronger ignition system on your 1.8T.
We are dedicated to serving your engine and performance needs. If you have not already done so, please check out our line of high quality forged connecting rods for all VW / Audi applications. Also, check our website frequently for new product releases. If you have any questions or concerns about this product please do not hesitate to contact us:
Integrated Engineering
801.484.2021
sales@intengineering.com
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13 Comments
How does the ignition work if you are deleting the ignition control module? Please explain! And how does your wiring harness convert the 3 wires into 4 wires?Could you explain what each terminal is for? I want to buy this, but want to know how it works first.
Phil, the ignition control module can be removed due to the newer FSI/TSI coils work all internal and do not run off a external ignition module.
Nice right up! Glad to see that you guys have found a solution for those awful power output stages! NICE
Hello, I own a 98 Honda accord V6 Automatic. It uses distributor and a coil to feed the whole six cyclinder. My question is do you guys offers system for my car? If yes could you please send me what you have.
Craig,
We specialize on VW/Audi engines currently and we do not offer any products specifically for your car. However, we o have some universal products such as fuel pumps, injectors, surge tanks, catch cans, fittings, silicone, etc… that will work with just about any vehicle.
So what is the difference between the FSI & TSI plugs. What’s you guys input? Excellent set upand soon to adapt my engine with the correct gear. AWESOME!
Thanks! The only major difference is the color scheme on them red/black (FSI) and black/black(TSI). There is no performance gain over one vs. the other.
Appreciate it. My wishlist is soon to become my cart!
Hi, Just wondering how this would work with stand alone management which operates with a MAP sensor. No ICM.
Cheers
These would work just fine, you would not use the ICM delete converter if you have deleted it.
I just installed this upgrade in Audi TT and most everything went smoothly. The only snag I ran into was I was unable to use the stock vacuum tube bracket which mounts above the stock coils. The taller coils prevent the bracket from touching the adapter plates and if you use longer bolts the bracket will crush the coils onto the plugs. This bracket also includes one of the engine cover mounting tabs.
Thanks for letting us know Michael, we have not tested them on Audi TT’s. As with any modification, some alterations may have to be made on certain engine codes, many stock covers will not fit with the taller FSI coils. Thanks for the information on the MKI TT chassis!
A little more info, my TT is a 225 amu engine code and it runs great with FSI coils. These are the third coils I have had to install, hopefully the last.