1989 Talon Tsi Ecu Question & Info..

[brainlessher0]

Alright guys, We just purchased a 1989 Eagle Talon Tsi that has a few slight problems...

The guy who owned it before me said it had a miss and he could never figure out the problem, he replaced the ecu 3 times and had the same results. I was checking through the Ecu's he had purchased and I came across an E-prom... Will this Ecu work with my 1989 Eagle talon? I am not sure which of the 3 is the original.

Here is a pic of what the ecu looks like

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I am pretty sure the car has a burnt valve so im going to replace the head with another one we have laying around. Would there be any benefit to me to run a cyclone intake?


Thanks guys... And 1g Carbon parts are on the way

Hard to tell by the pics but the car is dark green and silver, It needs a scrub and a slight face lift but for $500 I couldnt pass her up. Probably going to do a 20g or hx35 build with this baby after we max out the little 14b it has on it (shouldnt take long)

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[toofast82]

Wow an 89', I know they existed, but never actually seen someone have one!
I believe there are a few pins that are different on your ecu than say a 91-94.
Im not sure if the 89 uses the same ecu as 90?
You could probably swap a few pins and use a 91-94(e931) ecu
According to the files in the yahoo group, EB20 is from a 94 nonturbo 5spd. You could possibly have that ecu socketed and install an eprom with the proper coding and than swap the corresponding pins. I use 5spd coding on my original auto ecu.
Hopefully steve will chime in!

 

[tkelly27]

You'll notice there is no knock board, it is a NT ecu. You can ut the eprom in it and have it run the car, but the injectors drivers could burn up, and the there is no knock board, so you would need a stand alone knock board.

I had a NT ecu running my car with a 1g maf by creating a metered vacuum leak. I only did it while my turbo ecu was getting socketed, I don't advise it any other time.

There are two wires different between the 90 and 91-94 ecus. I'm sure the 89 is the same. The link I normally use is down, but I'm sure there are ecu pinouts somewhere on the internet.

 

[toofast82]

You'll notice there is no knock board, it is a NT ecu. You can ut the eprom in it and have it run the car, but the injectors drivers could burn up, and the there is no knock board, so you would need a stand alone knock board.

I had a NT ecu running my car with a 1g maf by creating a metered vacuum leak. I only did it while my turbo ecu was getting socketed, I don't advise it any other time.

After hearing this, i would just recommend getting an original turbo ecu!

 

[brainlessher0]

I have two other ecus, So one of them is the stock ecu... Anyone have any pictures of what the stock ecu would look like... i have one with the model number E2T34474A and the other one is in the car ill get the numbers soon

 

[brainlessher0]

second ecu

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[Bender]

I'm not positive, but isn't that other vertical board the knock board?

 

[brainlessher0]

I hope... atleast then id be getting closer to an e prom ecu that will work

 

[brainlessher0]

Anyone?

 

[BoostFrenzy]

There is a page somewhere that has a massive list of what ECU code goes to which years and such. I can't find it now on my phone, so I am posting this as a "subscription" and I'll edit it later with that link. Then we'll figure out which is a good ECU to run.

 

[brainlessher0]

Thanks man we appreciate it

 

[brainlessher0]

i did some searching and the second ecu i posted will work for my car... Is it eprom?

5/88-6/90 - MD128625
E2T34474
E705A

 

[1stGenTSi]

i did some searching and the second ecu i posted will work for my car... Is it eprom?

5/88-6/90 - MD128625
E2T34474
E705A

Yes the 2nd pic you posted is an eprom.

 

[brainlessher0]

Perfect... Looks like thats the ecu ill be running.

 

[myturbo]

What im not understanding is, bith pics show an EPROM ECU, and only TURBO cars had them.

ALL turbo cars had KNOCK sensors, hell my 93 n/t had a KNOCK sensor .

THE 88-90 ecu looks diffrent from a 91-94 ecu INSIDE, If it is a 91-94 you just switch a couple pin out's.

No cutting or any thing!

 

[brainlessher0]

the third ecu i have is a type M, Non eprom

 

[toofast82]

E742 is the 1990 Federal AWD MT turbo so it should work without changing any pins assuming 89 & 90 are same.

 

[brainlessher0]

Looks like my starter is locked up... So ill be replacing that within the next week or so. After inspecting everything timing looks to be off 1 tooth (timing belt was changed by previous owner)

He had said the car was missing and he couldnt figure out the problem... Could the fix be that easy?

1 tooth off cause it to run like complete trash
(from searching i found that this is more then likely the problem)

 

[DSM1G90]

Wow an 89', I know they existed, but never actually seen someone have one!

Mine was built in June of '89 that contains the same MD128625 FED FWD Turbo ECU.

Kinda curious on the "MDH" build date and month and year which is posted on the sticker located on the driver's door lower "C" pillar.

(That vintage year would be more fun to restore to factory new condition than to customize it)

 

[brainlessher0]

we are going to restore everything within reason... Interior is going to be stock, paint original sceme/color and im going to create a way to conceal the gauges so you cannot even tell they are there. I have to have atleast 300 to the wheels... so what ever i have to do to get there will be done. Probably just run an e-prom chip 550s and a 190 fuel pump...

 

[brainlessher0]

September 1989 was the build date.

Mine was built in June of '89 that contains the same MD128625 FED FWD Turbo ECU.

Kinda curious on the "MDH" build date and month and year which is posted on the sticker located on the driver's door lower "C" pillar.

(That vintage year would be more fun to restore to factory new condition than to customize it)

 

[toofast82]

September 1989 was the build date.

It says 1989 on the title?
My 1990 was built sometime in 89' but i can't remember what month exactly, it was a long time ago

 

[brainlessher0]

The title is being shipped to me (had to transfer it from another guys name) So i havent seen it yet. The guy i purchased it from said... 1989 so im guess it does

 

[steve]

Alright guys, We just purchased a 1989 Eagle Talon Tsi that has a few slight problems...

The guy who owned it before me said it had a miss and he could never figure out the problem, he replaced the ecu 3 times and had the same results. I was checking through the Ecu's he had purchased and I came across an E-prom... Will this Ecu work with my 1989 Eagle talon? I am not sure which of the 3 is the original.

Here is a pic of what the ecu looks like

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1990 car production started in May of 1988 according to caps so there might be some cars titled as 1989's. However a September 1989 build date would clearly be a 1990 model year car.

As others have stated, this is a 1994 MD304481 Federal NA 2.0L FWD EPROM ECU. Pretty much just spare parts or could be converted using parts from a non-EPROM turbo ECU.

second ecu

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This is a 1990 MD145903 Federal Turbo 2.0L MT AWD EPROM ECU. The white edge connector should say 4478. It had the capacitors replaced sometime in the past but I can't tell a lot from the picture, what I can see looks depressing. The caps had leaked pretty badly before it was fixed.

 

[brainlessher0]

So steve.. is it not worth fixing or using? Will this ecu work on my fwd TSI?