anybody know upgrade ecu?
02-28-11, 06:53 PM
#2
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I'd say you heard wrong. No such thing exists.
02-28-11, 07:13 PM
#5
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It's junk.
Sorry, no one in China has cracked the Toyota ECM. The only company worldwide who has the ability to modify a Toyota/Lexus ECM is Tom's.
We've already been down this road with a number of vendors. It has never, ever worked. I have a personal friend who has cracked Volkswagen, Audi, and Porsche ECUs for a living. He spent more than 2 years trying to crack the Scion tC ECU without success. There are a number of reasons it can't be done by someone outside of Toyota without the help of someone inside Toyota.
Any box you tack on will either do something benignly bad or absolutely nothing at all.
Sorry if this sounds harsh, but it comes from 18 years of trying to crack a Toyota ECU starting with my Supra in '93.
As far as Auto Chips - Click here. Notice the top results are ripoff report? What does that tell you?
Sorry, no one in China has cracked the Toyota ECM. The only company worldwide who has the ability to modify a Toyota/Lexus ECM is Tom's.
We've already been down this road with a number of vendors. It has never, ever worked. I have a personal friend who has cracked Volkswagen, Audi, and Porsche ECUs for a living. He spent more than 2 years trying to crack the Scion tC ECU without success. There are a number of reasons it can't be done by someone outside of Toyota without the help of someone inside Toyota.
Any box you tack on will either do something benignly bad or absolutely nothing at all.
Sorry if this sounds harsh, but it comes from 18 years of trying to crack a Toyota ECU starting with my Supra in '93.
As far as Auto Chips - Click here. Notice the top results are ripoff report? What does that tell you?
Last edited by lobuxracer; 02-28-11 at 07:16 PM.
02-28-11, 07:32 PM
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you heard wrong lol. unless you show us a dyno that shows +20 or so horsepower after upgrading the ecu no one's going to believe you. all manner of people on this forum who are from around the world have tried what you say you've "heard" has been done in china and haven't been successful. sorry but you heard wrong or were flat out lied to
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02-28-11, 07:40 PM
#8
Oh man. I guess you guys found out about my guy in china. He actually did crack the ecu. Made the car super sick!!!! The only problem was that the gears wouldnt shift fast enough, when i was at wot. I would hit the limiter withing .5 sec and the gears wouldnt change. Still beat a veyron from a dig though. He took me when we got up to about 180ish.
02-28-11, 07:40 PM
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No, they don't. Maybe you're missing some critical information here. The processors have the complete supply chain managed by Toyota. The instruction set on the processor is custom manufactured for Toyota. They use onboard ROM with fusible links for the main program and flash memory for the maps. The maps are encrypted and use a checksum that gets calculated and compared before the maps will load into processor memory for use by the main program. Altering these maps means you need to know what kind of encryption was used, what keys you need, AND precisely which parameters need to be modified. There are more than 60 tables in even the simplest engine management platform.
So telling me they're modded in China with data from Germany sounds like complete BS.
I might believe the data comes from England - Lotus - except Lotus doesn't want to screw themselves for supporting their Toyota engines by releasing encryption information for Toyota engine management, and that assumes they have access to Toyota's encryption keys - which I really doubt Toyota would do as secretive as they are about all the rest of this stuff.
So telling me they're modded in China with data from Germany sounds like complete BS.
I might believe the data comes from England - Lotus - except Lotus doesn't want to screw themselves for supporting their Toyota engines by releasing encryption information for Toyota engine management, and that assumes they have access to Toyota's encryption keys - which I really doubt Toyota would do as secretive as they are about all the rest of this stuff.
02-28-11, 07:44 PM
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Oh man. I guess you guys found out about my guy in china. He actually did crack the ecu. Made the car super sick!!!! The only problem was that the gears wouldnt shift fast enough, when i was at wot. I would hit the limiter withing .5 sec and the gears wouldnt change. Still beat a veyron from a dig though. He took me when we got up to about 180ish.
Last edited by aliu603; 02-28-11 at 07:54 PM.
02-28-11, 08:16 PM
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okay so it seems that some guy over there had practiced in japan to mod ecu's and uses Toyota ECU
changed and added a chip on the ECU board
read out the original ECU settings and adjust with program
according to the owner of the car, the gas reacts faster and the acceleration feels more linear
another owner says that with two people on board of a total 300lbs with 1/5 tank of gas
0-60 is about 8.1, 7.6, 7.5 sec
-------------------------------------------------------------------
well....... I have no idea what they are talking about
I mean....... lexus.com already said ES350 had a 0-60 for 7.0 sec.......
so I guess maybe its just a placebo effect that people tend to push harder on the gas when they had this installed and wanted to try out?
just something that makes the throttle more linear?
changed and added a chip on the ECU board
read out the original ECU settings and adjust with program
according to the owner of the car, the gas reacts faster and the acceleration feels more linear
another owner says that with two people on board of a total 300lbs with 1/5 tank of gas
0-60 is about 8.1, 7.6, 7.5 sec
-------------------------------------------------------------------
well....... I have no idea what they are talking about
I mean....... lexus.com already said ES350 had a 0-60 for 7.0 sec.......
so I guess maybe its just a placebo effect that people tend to push harder on the gas when they had this installed and wanted to try out?
just something that makes the throttle more linear?