What ECU Do I Need?

[skreetracer87]

My mechanic fried my ecu in my 95 tsi front-wheel drive auto. so what all ecu can i replace it with? I know it has to be a 2g turbo. But does it have to be fwd or can i use an awd ecu? also does it have to come from an automatic car? thanks for any help guys.

 

[steve]

You can replace it with any turbo model ECU you can find: 1G-2G; FWD-AWD; A/T-M/T; it doesn't matter, they'll all work.

What?

Paul, you'll have to explain your thinking here because that doesn't seem right.

Steve

 

[VelocitàPaola]

I retract my previous statement; I was thinking he was looking for an ECU for DSMLink for some reason...

 

[steve]

My mechanic fried my ecu in my 95 tsi front-wheel drive auto. so what all ecu can i replace it with? I know it has to be a 2g turbo. But does it have to be fwd or can i use an awd ecu? also does it have to come from an automatic car? thanks for any help guys.

So you can use an ECU from any of the '95 turbo cars without any problems since they were all the same part number MD312464 starting out. The FWD cars got a different one mid way and that should also work MD309947.

I think the '96 cars ECU will swap but the later cars will need changes to work.
Maybe a 2G expert can be more specific.

How did they fry your ECU?

Steve

 

[skreetracer87]

long story short i broke an exhaust valve off when a timing belt went suicidal on me so i found a cheap head from a 93 tsi with cams (supposedly best year cams also had it ported and polished) so i had him wire up the 1g cas and when i came to pick it up it ran like hell. he didnt charge me cause i know him real well. i took it to another guy and he made up a bracket to use the previous cas and wired it back the way it came from the factory and it still runs like hell. it surges like crazy when you tap the gas and you have to keep giving it gas to keep it running. my guess is when he was wiring it he let the signal wire cross a hot wire and hit the ecu which makes since cause the cd player i had in it was fried also. Soooo what you are saying is i can use one from a 95 whether its auto or manual or awd or fwd? correct? if so it would make this way easier cause all i can find is awd 5speed ecus.

 

[steve]

Soooo what you are saying is i can use one from a 95 whether its auto or manual or awd or fwd? correct? if so it would make this way easier cause all i can find is awd 5speed ecus.

That is what I said.
If your existing ECU is running the car even poorly it's not totally fried.
You should try it in another car. You've had enough done to your car for it to be as questionable as the ECU.

Steve

 

[mn95TSi]

first off sounds like your running into 6bolt swap problems since you have the 1g head. maybe search around for info on that subject. if that's the case, even if you get a new ECU that probably won't fix your problems. seeing as i currently haven't fixed my vast 6 bolt swap problems (although mine doesn't sputter and die...just runs "ok") i can't exactly give you a solution.

any 95 ecu should work.

if you do find out that it is fried, i would recommend going with another 95 ecu.
the 95's have the eprom ecu(only in 95's) that works with dsmlink, and i believe, is the preferred one. if your future involves tuning the car in any way, you are already set with the right ecu to run dsmlink which many people would say is a superior tool compared to safc or other piggybacks.

-alex