I'm remaping my own car.

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I'm remaping my own car.

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I recently acquired some software and a cable to read and write to my ECU.(brought it for £20 on ebay for a friend)
I also acquired a very good remap file from another forum member in the hope I could some how use his to improve my own.
https://www.fiatforum.com/tech-talk/276174-diy-remap-3.html

Lacking the knowledge of how to do this I contacted http://www.pcmer.co.uk, I emailed him a copy of the MAP I extracted from my ECU and he is going to email it back to me tomorrow once he's remapped it so I can install the map myself using the software and cable I acquired. The process would normally take less than an hour and my car never left my drive.

I'm amazed how how easy this was?

Is it really this simple?

Why do some places charge so much?
 
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I recently acquired some software and a cable to read and write to my ECU.(brought it for £20 on ebay for a friend)
I also acquired a very good remap file from another forum member in the hope I could some how use his to improve my own.
https://www.fiatforum.com/tech-talk/276174-diy-remap-3.html

Lacking the knowledge of how to do this I contacted http://www.pcmer.co.uk, I emailed him a copy of the MAP I extracted from my ECU and he is going to email it back to me tomorrow once he's remapped it so I can install the map myself using the software and cable I acquired. The process would normally take less than an hour and my car never left my drive.

I'm amazed how how easy this was?

Is it really this simple?

Why do some places charge so much?

alright you can do mine then:p

just because some people are too lazy and some are too greedy to be helpful, like you see alot of idiots who will pay anything such as those electric superchargers someones gotta buy em

Ash
 
Unless you want to squeeze every last bit of horse power from your car a rolling road is not necessary, the MAP in a standard car isn't tuned on a rolling road, most people that provide Mobile Remaps have no rolling road. A 15 to 20% increase in BHP/Torque can easily be achieved by installing a generic MAP, no rolling road needed.

If you want to push your engine to its limits, then yes a rolling road is needed, but so is your time and money, all day and the best part of £500.

This guy can supply you with a quality generic MAP(25% bhp increase on my JTD) which YOU can install and uninstall for £100 and it only takes him an hour.

I think thats excellent, assuming it works, wont know untill this evening when I get home. Only £10 more than the Tuning Box I had fitted and just as easy to install and uninstall.

alright you can do mine then:p
Ash

If your serious and live close your welcome to use my software and cable.
 
As it's so cheap (free) thats fine, but for anyone selling such a service / product they should be able to validate performance gains, not so much as squeeze out every last drop of power.

After all, my car feels 10% quicker when I wash, vacuum & polish it... but a Rolling Road would counter that feel good factor... :p
 
do it mate, i got a map for my dads car and it's absolutely amazing, so much more power, got the 0-60 down almost 2 seconds! (in an automatic so 0-60 is always gunna be the same) better mpg too.

just ignore the negative brigade and take all the precautions.
 
As it's so cheap (free) thats fine, but for anyone selling such a service / product they should be able to validate performance gains, not so much as squeeze out every last drop of power.

After all, my car feels 10% quicker when I wash, vacuum & polish it... but a Rolling Road would counter that feel good factor... :p

A rolling road is not needed when a good, proven generic MAP is used(or when you clean/hoover your car - :p), the generic MAP has been tested over time and is now trusted, negating the need for a rolling road.

Many tuning companies install proven generic MAPs without using a Rolling Road and get good results, Angel Tuning for example.

If taking her out for a few hours puts a smile on my face why do I need a piece of paper from a not very accurate machine to tell me my car is quicker, the difference in results from different types of Rolling Road can vary as much as 10/15%.

Like I said, if you want to push your engine to its limits then a Rolling Road is needed, but not if you want an average power increase.

do it mate, i got a map for my dads car and it's absolutely amazing, so much more power, got the 0-60 down almost 2 seconds! (in an automatic so 0-60 is always gunna be the same) better mpg too.


just ignore the negative brigade and take all the precautions.

BTW mate, i got my map free off a member on an mg forum who bought his map from a bloke doing them for £50. he takes the original and makes a new version.

Its done, just waiting to go home and install it. I trust the guy suppling the MAP, I know a rolling road isn't needed, although http://www.pjmotorsportltd.co.uk is very close to me and I know a guy that works there so I may at a later date pop it on a rolling road.
 
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agreed a RR is not needed, i think folk assume if you pay a couple of hundered quid for a remap it's RR'd loads of times and custom tuned, in reality they're doing what we've done, loaded a generic map onto the ECU, which for a modest road car is plenty. hope it goes well for you mate! still chuffed with my dads car, mine's already mapped.
 
Mine was RR'd twice as I watched the whole process.
 
Hmmm remaps. Remaps in general ??? Ok its slightly different in Diesels with turbos, but on N/A petrol cars. They are tuned in the factory to have maximum torque under foot of normal driving by slightly over fuelling. By changing the map to make the fueling leaner you are increasing Horse power but reducing torque and drivability of the car no matter what a RR says ;)
 
Erm source?

:yeahthat:

bearing in mind I've had mine done and got an increase in power, torque and fuel economy :rolleyes:.

The factory maps ARE conservative for a number of reasons which I really can't be bothered to explain fuel quality across the cars 'market' being a factor :eek:.

And IMO remaps CAN be done without a rolling road but the Fueling MUST be checked, this can be done on the move with a portable bluetooth exhaust probe (i'm sure I've seen them).
 
I installed the MAP from Chris at http://www.pcmer.co.uk this morning, took less than 30 seconds.

I asked for a moderate MAP, didn't want huge gains that would kill my car, but the results weren't instant like I thought they would be. :confused:

I took the car out for 30 min drive, at first there wasn't a huge difference but it seemed to build up gradually over 10 to 20 minutes of driving. It felt like the car was getting used to its new MAP and was increasing the power accordingly. By the time I got home(about 30 minutes later) the car felt great, as good as, if not better than having my old tuning box turned up to its max.

"DIY Online Remapping, I'm really impressed. :D

Plus I'm able to install and uninstall the REMAP whenever I chose, so these new MOT laws deffinately wont be a problem. (y)
 
Plus I'm able to install and uninstall the REMAP whenever I chose, so these new MOT laws deffinately wont be a problem. (y)

You hope :eek:

Depending on ECU then one can have RAM, EPROM and I believe is some cases supplementary EPROM memory.

RAM is the working space. Base EPROM is where your basic map and functions are stored. The supplementary EPROM stores long term data like mapping history, best system recovery data, and probably a whole host of other stuff that will not be changed with a remap or flushed out by and extended power down.

Anyway a bit of a mute point as I believe that when cross EU/World MOT regulations check legitimacy of ECU maps then the more reputable remapping companies will be able to supply approved remaps. Only problem will be that this approval will cost the company and therefore cost the end user.

Also I suspect manufacurers will be required to lock down their ECUs so after market reflashing will become very very difficult.

F1 has already gone down this route with basic engine control software being supplied to all teams from one approved source. After that there are limited changes/programming that the teams can make. This is all checked by the FIA post race.

What is open season and up for grabs is stuff like air filters, paths, exhausts, better intercooling and a whole host of other stuff. Most ECUs are programmed to cater with a broad range of parameters because no car comes off the manufacturing line with the same characteristics. Having said this they are generally bounded by min / max expectations of air flow, temeprature etc. etc. This means that the ECU map has to accomodate this range with a good safety margin. So without changing the map you can exploit the safety margin operating envelope and still be totally legal (subject to the usual insurance modification disclosure requirements)

Strangely this is exactly what F1 and other regulated motor sport teams do.

Where there is a will there is a way.
 
I suspect you may be right with the newer 16bit ECU's but mine is an 8bit and doesn't contain any secondary EPROM memory, so no history. ;)


A little update to the MAP I installed.
Its strange but the vibrations from the engine on tick-over have gone, its sounds much quieter than before too.
MPG is better according to the trip computer.
She pulls hard, the torque is amazing.
And last but not least, SHE GOES LIKE THE WIND! ....
 
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