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Long time lurker, first time poster. I am the steward of a 1996 Carrera 4 that received some "enhancements" sometime before 2013. One such enhancement was explained as a "performance chip" in the ECU. I have the ECU out of the car, so I decided to investigate. I have attached photos of what I found, which consists of a small board wired into the ECU. Does this look familiar to anyone? If so, please share whatever information you may know.
Thanks! Top view of 1996 Porsche 911 993 ECU with "chip" in top right corner 1996 Porsche 911 993 ECU with "chip" 1996 Porsche 911 993 ECU with "chip" another view 1996 Porsche 911 993 ECU with "chip" yet another view 1996 Porsche 911 993 ECU with the pink wire from the "chip" to a connector pin 1996 Porsche 911 993 ECU with the pink wire from the "chip" to a connector pin another view
Sorry, I can’t help with your query, but my car was recently remapped and the process was to remove the stock eprom (and put it somewhere safe), copy the contents onto a new eprom, fit it into the ECU , and then remap while running the car on a rolling road
Long time lurker, first time poster. I am the steward of a 1996 Carrera 4 that received some "enhancements" sometime before 2013. One such enhancement was explained as a "performance chip" in the ECU. I have the ECU out of the car, so I decided to investigate. I have attached photos of what I found, which consists of a small board wired into the ECU. Does this look familiar to anyone? If so, please share whatever information you may know.
Thanks! Top view of 1996 Porsche 911 993 ECU with "chip" in top right corner 1996 Porsche 911 993 ECU with "chip" 1996 Porsche 911 993 ECU with "chip" another view 1996 Porsche 911 993 ECU with "chip" yet another view 1996 Porsche 911 993 ECU with the pink wire from the "chip" to a connector pin 1996 Porsche 911 993 ECU with the pink wire from the "chip" to a connector pin another view
It's a Mickey Mouse immobilizer delete! This one doesn't have the daughter board attached, so there's no so-called "tuning" done.
__________________
Loren
Systems Consulting - Automotive Electronics
Specializing in Porsche cars http://www.systemsc.com/
Sorry, I can’t help with your query, but my car was recently remapped and the process was to remove the stock eprom (and put it somewhere safe), copy the contents onto a new eprom, fit it into the ECU , and then remap while running the car on a rolling road
The 993 DME ECM technology didn't use EPROM. It's flash memory in the engine processor chip in the DME ECM. Consider contacting the "tuner" and determine what was really done.
Hi Gbooks,
ECU Doctors offeres the daughter board option for 1996 OBD-II. Speak to them first and see if it is theirs. https://www.ecudoctors.com/
Andy
Hi Gbooks,
ECU Doctors offeres the daughter board option for 1996 OBD-II. Speak to them first and see if it is theirs. https://www.ecudoctors.com/
Andy
Just make sure after the mod, that you avoid bumpy roads, and carry a spare DME ECM!
The 993 DME ECM technology didn't use EPROM. It's flash memory in the engine processor chip in the DME ECM. Consider contacting the "tuner" and determine what was really done.
Only repeating what I was told by the guys who tuned my car told me, however I have known them for forty years, they are well known in motorsport circles, and I trust them explicitly.
Here’s an old post showing the Eprom, am I getting my terminology wrong?
Only repeating what I was told by the guys who tuned my car told me, however I have known them for forty years, they are well known in motorsport circles, and I trust them explicitly.
Here’s an old post showing the Eprom, am I getting my terminology wrong?
94-95 993s used Eproms (OBDI) like your above link
96 had some sort of board/system where the chip couldn't be flashed (OBDII)
97-98 could be flashed (OBDII)
04-27-2024, 09:53 PM
Need help identifying upgraded ECU
