No not the problem.... that fuel that makes a mess everytime the pump leaks down the side of your car.So to the point: Its common place to get a re-map these days especially on diesels, I know a few people on here have had their cars mapped and I was just wondering:Does anyone know if ECU's hold data regarding when they were changed?Are the changes blatantly obvious or just little tweaks that would need a lot of looking to find?If you've had it done did you get a before and after dyno?Noticed any change in fuel economy (good or bad)?Where did you get it done, and would you recommend them?Places like angel tuning have answers to all of these things but i'm not sure they're the best people to trust on this.The last Punto seemed to just have a bit more grunt than the current one, it smoked more and did better mpg, it got me thinking that it might have had a remap, it might have just been a good example but the more I think about it the more it points towards some kind of tinkering...
Most re-maps involve bypassing the original ECU or modifying ECU data with an additional unit rather than what is technically a re-map, ie. actually changing the data. So no ECU's don't hold data. Cos' they involve an additional unit which is simply plugged in it is totally reversible so when you haven't told your insurance company about the 20% power boost and you crash your car you just have to remember to unplug and remove the additional box before the cops get to you.Additional power = worse fuel economy. You are unlikely to see better round town economy without a reduction in round town performance. Fact.Not had the op yet on a car, remapped my CBR400 and it went like shit off a shovel!
All cars' performance output varies massively depending on type of useage, how clean injectors and fuel pump are, whether you use expensive or cheap or even the viscosity of the oil you use etc etc. If you're really that bothered about performance you'd start with these not £500 on a 're-map'. And you wouldn't have a Punto, lol
PerformanceEngine Size 1910 ccCylinders 40-60 mph 9.3 sPower Output 100 bhpValves 8Torque 260 Nm 192 lb-ftTop Speed 115 mph
Most re-maps involve bypassing the original ECU or modifying ECU data with an additional unit rather than what is technically a re-map, ie. actually changing the data. So no ECU's don't hold data. Cos' they involve an additional unit which is simply plugged in it is totally reversible so when you haven't told your insurance company about the 20% power boost and you crash your car you just have to remember to unplug and remove the additional box before the cops get to you.
Avoid getting cheapo tuning boxes and 99p resistors from ebay like the plague. They will fuck your car.I am holding off getting mine remapped because I might be changing it. If I decide to keep it I will be going here to get it done:http://www.p-torque.co.uk/
To re-write a chip you need an EPROM chip which most car manufacturers don't fit, or at least only parts are EPROM like mileage data. Write anything to the chip and you have a record of something having changed.
In answer to Paul, No. I like to think they are like me, living in ignorant bliss
Does anyone know if ECU's hold data regarding when they were changed?Are the changes blatantly obvious or just little tweaks that would need a lot of looking to find?If you've had it done did you get a before and after dyno?Noticed any change in fuel economy (good or bad)?Where did you get it done, and would you recommend them?Places like angel tuning have answers to all of these things but i'm not sure they're the best people to trust on this.
Sorry, I can't advise you where to go (I'm a VAG man). Try the Fiat forums?