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scientist
23-12-2009, 03:29 AM
I have spoken to one of the premiere coders for the H8 ecus in the us.

He said if we generate enough interest, he would be willing to port Launch Control, Check engine light on Knock and Speed density conversion over to the VR4 roms. He has also done rom changes to increase the size of maps all the way up to 26×22 for Ignition and 22×18 for Fuel

He would require Roms, and Beta testers...and works on Donationware...


Any of you guys interested in getting these things worked out for your ECUs?


his site is:
http://ceddy.us/flash/

wintertidenz
23-12-2009, 03:33 AM
I would be keen to see how that works out, but which ECU's will he be able to crack? The 7201's, 7202 and 7203's - or just the 7202?

scientist
23-12-2009, 03:55 AM
I would think the 7202 would be the best bet since all the bugs with flashing 7203s haven't been ironed out

Kenneth
23-12-2009, 03:56 AM
Yeah, am interested. Can't do much on my ECUs until they fix the MH7203 issues though as I have 3 of them :P

scientist
23-12-2009, 04:16 AM
Can someone send me some roms to email to him, The only VR4 i have available to me has a 7203 ecu

mattnz
23-12-2009, 08:59 AM
I've got a 7202 and would be willing to give it a go :)

scientist
23-12-2009, 01:03 PM
From what i've been told, once the 7203 flashing has been updated, you will be able to load a 7202 Rom to the 7203

kinkyafro
23-12-2009, 08:48 PM
Theres a 7201 rom on post number 1 of this thread http://www.clubvr4.com/forum/showthread.php?t=43786

Nutter_John
23-12-2009, 09:32 PM
A question of numbers ?

How many of each type of ecu's are there , just from a quick brain storm i did I would say that 70% of cars I have seen are 7201

So would it not be better to try and get the 7201 map tunable then we can then cover more cars ?

wintertidenz
24-12-2009, 12:02 AM
Are there other ECU's that could be viable to put in our cars and flashed? For example, the GTO or FTO ECU's?

scientist
24-12-2009, 12:04 AM
the GTO is just now begining to get Flash support and they have a small window. the USDM eclipse V6 has a flashable ecu as well.

Aren't 7201's non flashable? i'm looking for a 7202 or 7203 ROM to get the ball rolling.

Nutter_John
24-12-2009, 12:10 AM
They may be viable but AFAIK they are not re-programable either so no real benefit

Kinky is working on a way to put the eprom onto a socket so that you can re-program the 7201 ecu's , but as yet no one has decoded the map so all you would be able to do is run as stock until such time that the maps are fully known

Ryan
24-12-2009, 12:17 AM
Are there other ECU's that could be viable to put in our cars and flashed? For example, the GTO or FTO ECU's?

Doubt that they would work Dan. Different sized engines, no doubt different sized injectors and there are no turbo FTO's either.

scientist
24-12-2009, 03:16 AM
Doubt that they would work Dan. Different sized engines, no doubt different sized injectors and there are no turbo FTO's either.
Won't matter once its a flashable ecu. Using say the FTO map sensor based ecu and swapping over a map sensor would be a nice platform to start with considering its already setup for speed density off the bat.

Some of the US guys use Non turbo ECUs and flash turbo roms or modify the base ROMS to suit them

Ryan
24-12-2009, 03:39 AM
Ohhh... that's what he meant! Never mind :)

Eurospec
24-12-2009, 11:49 AM
The only flashable processor so far in the gto is the very very last ones which are extremely rare. They are fitted to a small proportion of 98 3000GT's only. They will be more common in the US.

At present FTO is unflashable, but remember although its map (the mivec ones) there is still an whole heap of work to do to make it drive a 2.5 turbo engine from a set of maps built for 2.0 na mivec.

Cheers,

Ben.

Turbo_Steve
24-12-2009, 11:54 PM
Ben....surely you just push in the maps from the VR4 ROM and start from there? As long as the speed density calculation converts to load, then it's just a case of there being a global correction across the maps?

I'm not saying it's easy by any means, but I wouldn't have thought it's a huge proposition if the number of cells and the load scales are similar.

Big assumptions, I suppose.