From everything I've see on current Toyota ECUs, ours should be a 32 bit running at about 200 MHz.

The only way I'd change my opinion on that is if someone comes up with specific information from Toyota, Scion, or Fujutsu-Ten about OUR ECU that contradicts that.

Closed. :D

 

Id still like to know why it cant be chipped like a mustang or something. Is the programming too complex or what?

 

yeah years of time and thousands upon thousands of dollars. not worth it when many other motors 32bit equipped or not can be modded MUCH easier to a higher extent.....

 

Because for warranty and federal law compliance, Toyota does not WANT us to be able to mess with the 'puter. :D

There is absolutely no advantage to the manufacturer in allowing that on an econo-car, and tremendous advantage (fewer problems) in not allowing it.

Tom

 

I was told that the reason the 06 has different pin configurations is because it uses a different computer. Also that there are some more advancments. everything came from a technician from toyota that has been with toyota for over 20 years. He stated that the ECU being used in many of the early 06 models is going to be the next OBD going to be OBD III. They are still working on it but the ecu was released as experimental and when you bring your car in they can hook up to the datalogging of the ECU and download the data. He said when he ran mine that he new I poped a CEL for MAF and everything even with me resetting the computer.

So if anyone knows more about this please shared!

 

The part of the whole discussion that I have a problem with is the contention that the ecu can learn to compensate for piggyback controllers. I see that as impossible. The ecu only knows what the sensors tell it, and what's built in to its internal mapping. If the piggyback alters the sensor information on the way to the ecu, then the ecu has no way of determining that, unless the information falls outside the mapped parameters, in which case it'll throw an error code... interpreting the information as a sensor problem...

And there's really no point to the ecu limiting power, only emissions. If mods actually increase the efficiency of the system, then the wot max performance mapping in the ecu will give more power, with the feedback from the sensors not being used to alter the settings... If the intake and exhaust systems actually allow better airflow thru the engine, then the ecu will compensate by adding more fuel to achieve the proper mixture. If that doesn't work, then it'll back off on the timing to prevent knock...

The relatively high output of our little motors indicates that the whole deal is very much tuned for performance, anyway, which seems to me to be the reason it's tough to get much more...

 

Just know there will ALWAYS be the bigger more powerful motor that's easier to make power with. Some people like to modify things simply for the accomplishment and not always to be the end all be all to street rods. Please stop crapping in our butter.

I think ZPI hitting 180whp on a turbo without an emanage and letting the ECU control the motor defunks this 'power robbing super neural net super computer ' ecu myth. You might say tons have failed before and ran into issues... perhaps ZPI knows what they are doing

 

It can be chipped. It's commonly referred to as ROM tuning.

Technosqure/Techtom equipment can be had to re-flash the ROM.

Trouble is finding someone with the hardward and software to do so. It's expensive to own. Upwards of $5000-10,000 for the license and hardware. Most people pay from $500-1000 to have their ECU flashed.

Best Regards,

 

obd II data can be looked up and is stored just like you said that is nothing new at all.

 

and a lot of people don't agree with or believe zpi and or trust their results.

 

it data logs all of the fuel, and what throttle % the a/f ratio is, kind of like a AEM with datalogging, how you can replay everything. that is how he explained it to me, it is so they can make the tuning on the motor better, and possibly make more power and MPG.

 

not so sure about all that he's saying but car's have had "black boxes" since about 2000 and can only be used legally in drunk driving/serious at fault accidents

 

+1 and correct. This is the ONLY thing the ECU cares about. Emissions!

This is NOT the first car to have been discussed concerning "learning ECU". For several years we "battled" this on the 350Z.

In the end. No problem. The ECU strictly cares about Emission guidlines. Not power. A few hours on the dyno and with Techtom reflash, instant power. Yet, keeping emissions happy.

 

Prove it please.

 

Why? Please don't tell me it's because at 162.78WHP the #3 rod should break at the wrist pin.

 

why don't you ever prove your points? you make me find things eh ?

i'll try and dig it all up to make a stupid point ON THE INTERNET!

 

These "black boxes" are nothing but your OEM ECU recording the last few seconds before catestrophic failure. Such as downshifting from 5th to 2nd. Causing generous RPM. ala 2000 celica GTS , 2zz. You can see the jump in RPM before destruction if you go back and look at the ECU. Not really going to do much more.


Certainly if you are going 150mph right before an accident.... they might question the recorded speed.

 

I know the ECU does do data logging. it also stores powertrain codes, etc for later retrieval. This isn't anything new.. but here, again, we have a statement about 'black boxes' as if they record audio in the cabin and GPS waypoints you pass so they can spy on you.

*sigh*

 

*insert spy hunter theme*

 

Speaking of in cabin spying... That is exactly why I will never own a vehicle with Onstar or any other similar system. The feds were already called on the carpet once by the supreme court for using the Onstar system to tap into vehicles and listen in. The only reason they got their wrist slapped is because when tapping into the system it would disable the use for the customer. If I remember correctly they were told as long as they could tap in without interrupting service what they were doing was ok.

I am not paranoid nor do I partake in illegal activities. I just don't like the idea of big brother having the ability to track my every movement and word when I am in my car. Not that I think they would ever have any reason to do so.