This is a bit of a longshot here -

Would it be possible to get another ECU from a Skoda and make it work in my car.

My thinking is, if I were to get hold of another ECU and have it copied to the same as mine I could swap between two ECU's, maybe one with a different map on it.

I think I have seen that VAG-COM can code immobilsers, would that be all that was required? I wouldn't be worried about the VIN or engine numbers as the spare would be the tweaked one so would only be fitted for special occasions

You can buy an ECU from Skoda, although I guess it would have to be sourced via the garage. However, I can't remember the cost, but it ain't cheap. Also, if your car is still under warranty, I doubt they'd let you buy another ECU unless your existing one had been diagnosed faulty.

It can be done / has been done, but don't believe it's worth the effort just to be able to swap between a totally unmodified Skoda-mapped ECU and a remapped one

I did it, although I see no reason to ever put the ECU in with the standard map again.

And also the trouble I went to, to get a second ECU is also not worth it. :(

I did it' date=' although I see no reason to ever put the ECU in with the standard map again.

And also the trouble I went to, to get a second ECU is also not worth it. :([/quote']

But if I had the second ECU - From another car

Who mentioned putting it in with the standard map on it??

Come on then - Spill the beans, whats involved?

But if I had the second ECU - From another car

Who mentioned putting it in with the standard map on it??

Come on then - Spill the beans' date=' whats involved?[/quote']

Well, first thing is crash your car and get another the same, using same ECU part number.

Well, assuming you have another way of obtaining an identical ECU, all thats needed is VAG com machine, your immobiliser codes to the current dashpod, and the immobiliser code implanted into your "obtained" ECU. Plug the "obtained" ECU into your car, turn on ignition, use VAG com to log in to the "obtained" ECU with its original 4 digit code, then once in, change it to match the dashpod's code and away you go.

"someone" did it in about 5 minutes for me. And my Jabba'd ECU has no place out of my car whilst the standard one gathers dust.

http://www.seatcupra.net/forums/showthread.php?p=419046#post419046

this may help

Thanks guys.

I tmight be a bit more complicated than the key coding though. The ECU I have an offer of is from a TDi. I'm presuming the internal hardware is the same, it certainly looks the same externally. I would need the whole of the software taken from my VRS and copied to the doner ECU - Not sure if this can be done.

I'd say get a switchable (re)map - more likely to behave itself, and you don't have to mess about moving around ECUs

There is a sizeable difference in price between some ECUs which would be hard to justify if the only internal difference was the map on the main chip.

There is a sizeable difference in price between some ECUs which would be hard to justify if the only internal difference was the map on the main chip.

It wouldn't surprise me if the MAP was the only difference. Supply and demand etc.

I'm looking at an ECU from a TDi although I have sourced a VRS one too.