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EPROM ECU Info

ECMLink is released as an EPROM replacement device. That means in order to run ECMLink in your ECU, you must have an EPROM model ECU or you must convert your non-EPROM to EPROM.

For 2Gs ('95-'99), that means a 1995 ECU because that's the only year EPROM ECUs were available for the 2Gs. For 1Gs ('90-'94), EPROM ECUs were available every model year, but you HAVE to check yours to see if you have an EPROM model or not. Additionally, for the 1Gs, if your ECU is non-EPROM but in good condition otherwise, we do have an EPROM conversion service we can perform if you'd like.

We do sometimes have a few EPROM ECUs available here for sale, so feel free to drop us a line if you want. We provide a significant discount on these ECUs if they're being purchased along with a new ECMLink package. You can get contact information off our contacts page.

Another option is to call a few salvage yards. We've found the car-part.com site to be particularly useful for this. You may need to call around a few places before you find one willing to check the ECU for you, but you can often run up on a pretty good deal ($125-$200).

Note: If you can't open the case, you can view the EPROM pins through holes in the bottom of the case.

2G ECU - EPROM CHECK

To check for an EPROM inside your 2G ECU, pull the ECU out and check the sticker on top. The sticker should have a part number on it (e.g., MD309947) with some other numbers and a letter in the lower right hand corner. The image below shows this sticker.

If the letter in the lower right hand corner is an “E”, then the ECU most likely has an EPROM. To know for sure, you can follow the same steps as outlined below for the 1G ECU.

A list of valid 2G turbo ECU part numbers follow. Note that only the first two marked in bold will likely contain an EPROM. But it's not guaranteed! Please reference this chart if you're not sure about the computer you're sending in. We have had a few cases where folks have shipped us a transmission control unit instead of the engine control unit.

MD312464 MD309947 MD321911 MD321912 MD326328
MD335287 MD346675 MD346676 MD359402 MD359403

1G ECU - EPROM Check

To check for an EPROM inside a 1G ECU, you really need to open the case to make sure. Open up the case by removing the screws (2 on each “side”) holding the top in place. Then remove the top casing half to reveal the circuit board. Compare with the photos below to determine if this ECU has an EPROM or not.

1G NON-EPROM NOTE: Keep in mind that even if your ECU is a non-EPROM, it can still be used with ECMLink. We offer a non-EPROM to EPROM conversion service off our website. This can be ordered separately or with an ECMLink package. When ordered with the ECMLink package, we can offer this conversion at a reduce priced.

www.dsmlink.com_images_photos_inside1gnoneprom.jpg www.dsmlink.com_images_photos_inside1geprom.jpg

A list of valid 1G turbo ECU part numbers follow. Please reference this chart if you're not sure about the computer you're sending in. We have had a few cases where folks have shipped us a transmission control unit or a non-turbo model instead of a turbo model engine control unit. Also note that the GVR4 ECU (MD165810) is as close to guaranteed to be an EPROM model as you can get.

Also note that only the numbers listed in bold are possible EPROM candidates. We've never seen any of the others come as EPROM model ECUs.

MD128623 MD128625 MD145902 MD145903 MD165529
MD165530 MD165531 MD165532 MD166260 MD166261
MD166262 MD166263 MD193293 MD193294 MD193295
MD193296 MD193297 MD193298 MD193299 MD193300
MD304482 MD304483 MD304484 MD304485 MD165810

EVO1-3 ECU - EPROM Check

Luckily, as far as we can tell, every EVO1-3 ECU was an EPROM model from the factory! So if you have one of these cars, you should be set already. The one caveat is that the EVO ECUs require a very simple modification to the ECU board to use our flash module.

ECU part # Model
MD187701 EVO1
MD312468 EVO2
MD322364 EVO3
MD317097 Lancer GSR CC 94-95

Other ECUs of interest and may be interchangeable with EVO ECUs:

ECU part # Model
MD312467 RVR minivan
epromid.1260382766.txt.gz · Last modified: 2009/12/09 13:19 by twdorris