deanr1
Guest
My gut feeling is you're right about the ECU, its too much of a coincidence that the car has been perfect all this time, then its plugged into their machine and go's wrong.
I reckon their machine has buggered something ECU related, but until i know for sure i wont name names.
The clue was when you said "as soon as they plugged in..."
i may be wrong here but cant you flash the ecu to check what software its got installed?
but if they have downloaded again its maybe scrambled.check if they are insured for this type of mishap too.new ecu will cost a few ££.
but if they have downloaded again its maybe scrambled.check if they are insured for this type of mishap too.new ecu will cost a few ££.
deanr1
Guest
I have now been able to test this and no it still wont rev past 5500rpm even in neutral.
tune-tec
Guest
Have you sorted this problem out yet? You would hope the experts would know what it was but it seems funny it lost the power when the stock map was downloaded off the car.
I do loads of these remaps with no problems, the other possible thing it could be is corrupt data in the ECU. Sometimes when a different tuning package is used to read the data the car can either lock up or have problems, REVO's system been an example of this.
Do you know if the car had been remapped prior to you owning it and been reset to stock code before you bought it. If it was the encryption on the stock code would be unreadable to the other tuners system especially if the file writer put a "NO READ" encryption on the file.
Some systems work like this, stock code is downloaded and encypted to their system on download. New tuned file is uploaded with same encryption this stops people copying other peoples work. Car is re-sold with stock file loaded back on, but this will still be encrpted to last persons code even though the car drives as standard.
New person comes along with different remapping software reads encrpted data, and file recognises someone is copying data. This is how the REVO system works, it can not be altered or changed with all other remapping programs.
Not saying this is 100% the problem but seems a bit too coincidental especially if the tuning company tried to load a tuned file over the top and it did nothing.
If you can find out what tuning system the garage used let me know as i may have some ideas.
I do loads of these remaps with no problems, the other possible thing it could be is corrupt data in the ECU. Sometimes when a different tuning package is used to read the data the car can either lock up or have problems, REVO's system been an example of this.
Do you know if the car had been remapped prior to you owning it and been reset to stock code before you bought it. If it was the encryption on the stock code would be unreadable to the other tuners system especially if the file writer put a "NO READ" encryption on the file.
Some systems work like this, stock code is downloaded and encypted to their system on download. New tuned file is uploaded with same encryption this stops people copying other peoples work. Car is re-sold with stock file loaded back on, but this will still be encrpted to last persons code even though the car drives as standard.
New person comes along with different remapping software reads encrpted data, and file recognises someone is copying data. This is how the REVO system works, it can not be altered or changed with all other remapping programs.
Not saying this is 100% the problem but seems a bit too coincidental especially if the tuning company tried to load a tuned file over the top and it did nothing.
If you can find out what tuning system the garage used let me know as i may have some ideas.
This sounds EXACTLY like the prob Bradmax57 had with his LCR. 'Tuner' plugged into the car and sent it funny.
The outcome was that the car had actually got Revo on (but turned off), but the 'tuner' plugging in caused weird Revo settings. Re-enabling Revo solved the problem.
See thread here
The outcome was that the car had actually got Revo on (but turned off), but the 'tuner' plugging in caused weird Revo settings. Re-enabling Revo solved the problem.
See thread here
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RSTuning
Guest
If no boost leak then it's looking like software..... What tool was the tuner using? Usually if the car has had revo etc alot of tools won't read them anyway so no real issue there. You need to take some vag logs and try see what is happening.
HarveyGTI
Guest
ECU Problem
This is why a lot of tuners won't touch a car that has had "trial" software on it before such as revo. Although you are told the code is deleted it is impossible for a binary code to delete its self so it just reverts to their version of standard. A propper tuner will be able to remove the ECU and reboot it off the bench, but you need to find someone who can do it.
I believe that Performance Torque might be able to help they are near you. Will mentioned something about being able to do this when he mapped my car, although he did stress he doesn't like doing it
Best of luck
This is why a lot of tuners won't touch a car that has had "trial" software on it before such as revo. Although you are told the code is deleted it is impossible for a binary code to delete its self so it just reverts to their version of standard. A propper tuner will be able to remove the ECU and reboot it off the bench, but you need to find someone who can do it.
I believe that Performance Torque might be able to help they are near you. Will mentioned something about being able to do this when he mapped my car, although he did stress he doesn't like doing it
Best of luck
You are right not to name the garage at this stage as they may just be good enough to map cars safely using software designed by others. Not everyone will be capeable of more advanced procedures. Doesn't automatically mean its their fault though.
You're not told it deletes itself, that's what people choose to beleive
Substand tools, substandard workmanship is to be expected from the buy cheap brigade of 'ebay' remappers out there
the truth is anyone with zero skills can buy the tools & the maps and 'tune' cars, but the evidence of this is that when things go wrong, they don't have the ability to work out the problem.
Decent tools accept that there maybe a previous version of code on the ECU, and can work past it. But they cost more money...
tune-tec
Guest
Agree, if the tuner is any good then the ECU can be repaired with a new data dump which will almost certainly mean reprogramming direct to the ECU by removing it from the car, not through the OBD socket. If all goes to pot a good tuner should be able to read the data off the EEPROMS by removing them decode and replace if necessary. The tuning industry don't look favourably at the ebay and inexperienced tuners who use £150 systems to ruin peoples cars. The saying is you get what you pay for and if you buy cheap you buy twice!!
deanr1
Guest
I've had the car since it was 18 months old and i bought it from a SEAT main dealer, as far as i know its never been remapped.
The place thats trying to fix it have found the problem is when the car is running, something is restricting the throttle and only allowing it to open less than 50%. The strange thing is the car is showing up no faults on VAG com.
They seem to be closing in on the problem at least and i'm hoping i might get it fixed this week.
deanr1
Guest
if it is something restricting the throttle, then it probably wont log a fault. the ecu will assume all is well and you are just not using full throttle.
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