ECU disassembly/reverse engineering
11-22-2011, 03:56 PM
#11
Senior Member
Thread Starter
Join Date: Oct 2011
Location: CNY
Posts: 581
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: 2000 Hyundai Tiburon
Yeah, likely because the hardware in the ecu is the same, and only the tune is different.
Tried snagging the ecu from the 1.8 in the yard, crushed already...
Eh.
Tried snagging the ecu from the 1.8 in the yard, crushed already...
Eh.
11-22-2011, 04:05 PM
#12
Administrator
Join Date: Mar 2006
Location: Lacey, WA
Posts: 12,515
Likes: 0
Received 2 Likes
on
2 Posts
Vehicle: Two Accents, Mini, Miata, Van, Outback, and a ZX-6
I'm pretty much positive that the only difference between the 1.8 and 2.0 ECU's is the tune. Other reflashers would take either the 1.8 or 2.0 ECU's as a core and flash the 2.0 tune onto it.
Also, I was told that the 2.0 ECU from the GK Tiburons and XD Elantras were the same internally as the 1.6 ECU. Consider it a rumor though because I am not 100% sure. Pinouts are different but the connectors are the same. If a 2.0 tune could be flashed onto a 1.6l ECU that could make it easier to run the right tune on a Beta swapped Accent.
Also, I was told that the 2.0 ECU from the GK Tiburons and XD Elantras were the same internally as the 1.6 ECU. Consider it a rumor though because I am not 100% sure. Pinouts are different but the connectors are the same. If a 2.0 tune could be flashed onto a 1.6l ECU that could make it easier to run the right tune on a Beta swapped Accent.
11-22-2011, 04:20 PM
#13
Senior Member
Join Date: Jul 2011
Location: Ontario, Canada
Posts: 388
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: 2004 Hyundai Accent
well i want to try swapping the ECU's first to see if i have an ECU problem....but after that i'd be happy to send the spare along the way. also don't want to send you a dud!
12-09-2011, 03:15 PM
#15
Senior Member
Join Date: Oct 2010
Location: ha.org
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: x3
subscribed... i'm currently using my 1.8l ecu but have a 2000 or 1999 2.0l ecu and a 1999 1.5l ecu, all same form factor and pin out. would be interested if you could post/host the code somewhere to look at. i've swapped all three through my x3 on the 1.5l and the 2.0l beta motor with success. i had intentions of using the 1.5l ecu again on the beta swap when i increased boost (hoping it was tuned with less timing).
12-11-2011, 01:25 AM
#16
Senior Member
Thread Starter
Join Date: Oct 2011
Location: CNY
Posts: 581
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: 2000 Hyundai Tiburon
jcturbeau:
Right now all I have is a partial assembly listing from IDA, and the main bin file.
Looks like the original code was wrote in C, based on the way the program flow is, so when you move back down to assembly it can get confusing.
Add to that I don't have more than a partial schematic of the ecu, and half the glue logic is Bosch proprietary, and it gets even more confusing.
I can put that up on Google docs along with the processor datasheet and instruction set/architecture info sometime soon.
Juanra:
If you have a 1.8 ecu or a 2001 2.0 ecu, that could help.
I'm hesitant to accept anything right now, since I'm unsure if my car's going to be totaled out or repaired...
Right now all I have is a partial assembly listing from IDA, and the main bin file.
Looks like the original code was wrote in C, based on the way the program flow is, so when you move back down to assembly it can get confusing.
Add to that I don't have more than a partial schematic of the ecu, and half the glue logic is Bosch proprietary, and it gets even more confusing.
I can put that up on Google docs along with the processor datasheet and instruction set/architecture info sometime soon.
Juanra:
If you have a 1.8 ecu or a 2001 2.0 ecu, that could help.
I'm hesitant to accept anything right now, since I'm unsure if my car's going to be totaled out or repaired...
12-20-2011, 07:37 AM
#20
Senior Member
Thread Starter
Join Date: Oct 2011
Location: CNY
Posts: 581
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: 2000 Hyundai Tiburon
1.8 beta would be prefered, but any Beta1 ecu's would help.
It's a right pain in the arse to deal with these black-box style systems, that's for sure...
It's a right pain in the arse to deal with these black-box style systems, that's for sure...