I've never heard of it being done. What would be the point?

I don't think anyone has done it in a 1g but there are 2g guys doing it. As mentioned, the tuning capabilities are more than worth it with the re-flashes available vs. the cost of a standalone.

That's awesome. I wonder what they do about the knock sensor? Just use an evo one?

^+1 That is pretty much what happens when I hit the upload button every time on Jackal/DS-Map.

I wonder if it is a 16 bit ecu? In any case, the hardware and software are much newer, that may make a difference. That, and can you just use the Evo re-flashing software on a 2g ecu? That would make a big difference.

Here's half of it:
ebay.

Quoting jepherz:

---

I wonder if it is a 16 bit ecu? In any case, the hardware and software are much newer, that may make a difference. That, and can you just use the Evo re-flashing software on a 2g ecu? That would make a big difference.

---

I don't know what difference the 16 bit would make, as I am not up to speed on that very much. I am just saying why can't programs be flashed onto the stock ECU?

I think the 2G-to-1G ECU swap may be even easier. Its already been done, years ago. The 98/99 Flash 2G ECU's should be pretty much plug-n-play, I just need to build a cable/adapter for it. You just need to swap to a 2G knock sensor, and possibly the coolant sensor.
Anyone want to be a guinea pig once I get it sorted out?

Quoting keydiver:

---

I think the 2G-to-1G ECU swap may be even easier. Its already been done, years ago. The 98/99 Flash 2G ECU's should be pretty much plug-n-play, I just need to build a cable/adapter for it. You just need to swap to a 2G knock sensor, and possibly the coolant sensor.
Anyone want to be a guinea pig once I get it sorted out?

---

so 98-99 ecu is reflashable too? If you make cables for it and are able to sell them, let me know, and if you decide to do the Evo ecu I'm down aswell.
-Shane

Uh, no. 1996 thru 1997 (and most 1995 FWD) were Non-EPROM ECU's with the ROM inside the CPU, where it is inaccessible. In 1998 they switched to a new CPU with internal flash memory. So, this only works for a 1998 or 1999 2G DSM ECU in a 1G/GVR-4.

Quoting keydiver:

---

Anyone want to be a guinea pig once I get it sorted out?

---

I'd be up for trying it out.

Evo 8-9 ecu's are right on par with standalone systems and can also be covrerted to sd to get rid of that pesky maf that becomes a restriction in the mid to upper 500whp area.

I have seen it done in the 1g but I honestly did not take a close look or ask questions since I do not have a dsm or gvr4 anymore but it seems there is no real restriction in the stock ecu as it has made well over 700whp and can run 1500 cc injectors etc..