Remapping ECU's Anyone done it and provide any advice.

[B5NUT]

So I can close this thread out. Received the MPPS software and cable this evening, and felt there was no time like the present to flash the car. It was either going to work or not regardless of the time of day or night. Anyway it turns out this was the best £30 I spent, as I was getting quotes of £100 to return the car to a stock map.

Made a backup of the current ECU, then flashed the stock MAP that I was given. Thankfully everything went well and the ECU is now back to a stock map and the car is crackle free.

Took the car out for a quick drive afterwards and it felt so much better, with the old map it had a slight hesitation with the revs at about 4K rpm, that's now gone and the car running so much better, and no silly pops when decelerating. It also feels no slower with the standard map on the car. Think that map could have either been a crackle map only or it was just a load of rubbish with added crackles! Either way it will never be put back on the car. Should be a little more economical as well as I'm not chucking fuel in the engine to get some silly noises, and my cats are not going to get destroyed.

[newsh]

So I can close this thread out. Received the MPPS software and cable this evening, and felt there was no time like the present to flash the car. It was either going to work or not regardless of the time of day or night. Anyway it turns out this was the best £30 I spent, as I was getting quotes of £100 to return the car to a stock map.

Made a backup of the current ECU, then flashed the stock MAP that I was given. Thankfully everything went well and the ECU is now back to a stock map and the car is crackle free.

Took the car out for a quick drive afterwards and it felt so much better, with the old map it had a slight hesitation with the revs at about 4K rpm, that's now gone and the car running so much better, and no silly pops when decelerating. It also feels no slower with the standard map on the car. Think that map could have either been a crackle map only or it was just a load of rubbish with added crackles! Either way it will never be put back on the car. Should be a little more economical as well as I'm not chucking fuel in the engine to get some silly noises, and my cats are not going to get destroyed.

Brilliant result well done :clap:

[Tractor Dave]

Yes, very well done. You do realise that this success automatically promotes you to head Forum software expert?

[B5NUT]

To be honest I was bricking it while I updated the ECU. I know a replacement ECU would only be about £70 but then there would be the immobiliser to sort out, and most likely the car would be off the road for a week or two, could be longer depending on the post at this time of year. Would also most likely need a new cable & vagtacho to get the immobiliser pin code, it would have just been a massive pain in the backside.

[le mans]

Bricking it, nice pun

I was the same initially, but after 20+ successful reflashes I’m pretty comfortable with the process now.

[mdz]

These ecus are easily recoverable with ft232rl kkl or galletto cable.