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Thread: What is it so hard to find a V8 FSI ECU??? Reply to Thread
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  Topic Review (Newest First)
01-12-2018 03:59 PM
Perry01 Much better throttle response but probably only a 20 HP gain. I also bypassed the secondary cats and installed a lightweight crank pulley.
01-12-2018 11:46 AM
hydrolocked What was the total cost and seat-of-the-pants results?
01-12-2018 10:33 AM
Perry01 I purchased a flash tuner that plugs into the OBD2 port and flashed a custom e-tune from Malone tuning.
01-12-2018 12:50 AM
hydrolocked Found one! I thought it relevant to bring this thread back from the dead because Grifnsqest is still an active member here.

Grifnsqest, what tuners have you researched? I'd be willing to buy this if you can share a tuner that told you they would do it.
09-10-2015 04:48 PM
Grifnsqest At least from what JHM says, we would need to have an ECU from the Touareg specifically. He said there were too many variables involved if an ECU from a different vehicle was to be used.

So... if anyone comes across a crashed Touareg, pull that ECU!!! If you find one for sale, either on eBay or Craigslist, BUY IT!!! Maybe we can all chip in some kind of crowd funding venture to get ONE DAMN ECU to be sent off, so that a file can be written for our big ol V8s.
09-10-2015 04:19 PM
Grifnsqest I was under the impression that I would need to find one with the same spec/software as the Touareg...? When I first contacted JHM, they asked me for a quick scan of my ECM controller, so they could start gathering data.

I'll check with them and see of an ECU from one of the other 4.2 FSI models will work just the same...
09-10-2015 12:48 PM
Originally Posted by nickm View Post
The FSI V8 in the S4/S5/Q7/A8 is the same engine. Broaden your search to look for an ecu out of one of them.
The Touareg V8 FSI has the Bosch MED9.1.1 ECU. I believe it's the same ECU that the S5 B8 has and probably other Audi models with the same 4.2 FSI.
09-10-2015 12:08 PM
nickm The FSI V8 in the S4/S5/Q7/A8 is the same engine. Broaden your search to look for an ecu out of one of them.
09-10-2015 10:42 AM
shaolin Hope you can find it so they can develop a tune for us.
09-10-2015 10:41 AM
Originally Posted by nickm View Post
FSI was in the 07 - 09 only..07 was only around for 3 months, they made maybe 5 or 6 of the 09s with a V8, and 08 was the only full year of them. This is why there are not many out there.
Really only 5 or 6 09s with a V8? I feel privileged!
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