Liom the Chef
Member
would be nice to get a definitive answer on it, just uninformed theorizing isn't really helpful
is a re-tune worthwhile?
- Thread starter jason2112
- Start date
Liom the Chef
Member
tryg said:
eventually I'll find out practically, I just don't really want to ring around when I don't actually intend to do it yet.
Well I was talking to chowetime the other week when I went down. She got a USDM one because the immbolizer prohibited the reflashing of her ecu... This is where the ol' if you got plastic, if you got metal came in, since some where immbolized some weren't... It actually really does depending on your ECU. If you have the right one you can, if you don't then you can't... but you can put another one in... The reason that you go international is because they don't require cars have immobilizers where as Australia does require them, but at the same time, I personally am not 100% sure on whether the immobilizer is the prohibiting factor or if it's a combination of things.
As mentioned, people in the US have definately done this, as well as some others in other countries, I am yet to see a 4g69 AUDM one down, but I'll be happy to be proven wrong.
As mentioned, people in the US have definately done this, as well as some others in other countries, I am yet to see a 4g69 AUDM one down, but I'll be happy to be proven wrong.
Firstly, Id like to point out that I do have immobilizer on my car. The problem with immobilizer is that you can't put another rom inside it. But you can take OEM out -> change it -> put it back. That is how we re-program ECU's here. I know that people (a long time ago) fighted with the same problem here (they we're trying to plant someone else's rom on their ECU) but the solution was ridiculously easy. If you want to use someone else's already made rom on your's, you got to change it's immobilizer code to same as your original code. Else it won't work.
Just to show you, the immobilizer can also be taken out, if it is enabled (this is from EcuFlash):
And like I said earlier, it just needs a bit commitment, interest, some spent time on the internet and an OpenPort Cable (as for 4G69, 2.0 is the right one). I bought my cable for 40 € (50ish bucks). So as far as I'm concerned, piggybacks are a waste of money. And basically on piggybacks your just fooling the ECU which can lead to other problems.
Like I said before, I would be more than happy to help you on your testing.
Just to show you, the immobilizer can also be taken out, if it is enabled (this is from EcuFlash):
And like I said earlier, it just needs a bit commitment, interest, some spent time on the internet and an OpenPort Cable (as for 4G69, 2.0 is the right one). I bought my cable for 40 € (50ish bucks). So as far as I'm concerned, piggybacks are a waste of money. And basically on piggybacks your just fooling the ECU which can lead to other problems.
Like I said before, I would be more than happy to help you on your testing.
Liom the Chef
Member
sladey121 said:
Still, what personal knowledge do you have about the topic to be able to comment.... you're parroting what other people have said out of context
tryg said:
I believe it's because under the ADRs you need to have rolling codes for the immobilizer,etc whereas the international models didn't.
I personally think this is good they force manufacturers to do it and ultimately if it reduces theft it keeps your insurance premiums lower and eliminates the need for an aftermarket install
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Even if reflashable does anyone have a Definition file yet for the ECU?? That link you lot kept referring to in past threads as having a def'n file there merely has a copy of the ROM and says you need to find someone to make you the def'n file....
Liom the Chef
Member
Ryan said:
This is true, my point is however, that if you don't at least have some idea of what you're talking about as Sladey doesn't (neither do I really), whats the point of contributing, at least urran has some idea of what he's discussing, even if he may be wrong. I'm not trying to claim it can or can't be done, merely finding pointless opposition to people doing their own research irritating.
Ryan said:
The concrete proof is that we are yet to know, or know anyone, that has attempted or have an AUDM 4G93,94,69 ECU with an immobilzer that has been able to flash it. That's all we really have... We know for a fact that for <$400 you can get a USDM, JDM, EUDM, Porterican ECU that can be flashed, and the definition file/ROM changed.
You can certainly well get the ROM/Definition file, I believe the issue is putting it back onto the ECU...
@Sladey, at the end of the day, a reflashed ECU is a reflashed ECU... no matter what country it is from... for the price of a reflashed PnP ecu from the states, or the porterican guys is going to be a fraction of the cost of going a full standalone, and work better then a piggyback...
I also believe this thread was labeled: "Is a re-tune worthwhile?", not: "Lets give him 'advice' on how to do the retune and give inaccurate advice"...
At the end the question was, is it worth it?
-Yes it is. Sometimes the factory tune can be too lean or too rich, and with added mods the ECU compensates increase air flow, by retuning you gain the correct level of tune to benefit the addition air flow...
(I"ll leave this open... If we want to continue the ECU discussion do it in another thread...)